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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 6028. Отображено 100.
07-06-2012 дата публикации

Detector for Detecting a Current Carrying Conductor

Номер: US20120139525A1
Автор: Richard David Pearson
Принадлежит: Radiodetection Ltd

A locator for determining the location and/or orientation of a concealed conductor, comprising a reference field detector operable to detect an alternating magnetic field along a reference axis; a first field detector operable to detect an alternating magnetic field along a first axis; and a processor operable to calculate an in-phase component of a signal detected by the first field detector, the in-phase component being in phase with a signal detected at the reference field detector and to calculate a signal indicative of a position of the concealed conductor relative to the locator using at least the in-phase component.

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Номер записи: 1
28-06-2012 дата публикации

Magnetic effects sensor, a resistor and method of implementing same

Номер: US20120161788A1
Автор: Frank Allen, Joseph T. Siewick
Принадлежит: Alion Science and Technology Corp

A system of having a circuit having an electrical coil configured to generate a magnetic field based on properties of a surrounding space and an object presented to the electrical coil and a sensor configured to sense inductance and resistance of the electrical coil and to discriminate the object presented to the electrical coil in accordance with the sensing. A precision variable resistor to control resistance of an in-loop photoresistor with an out-loop photoresistor that are located parallel to each other.

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Номер записи: 2
13-09-2012 дата публикации

Method and apparatus for detecting and mapping subsurface resistivity anomalies

Номер: US20120232797A1
Автор: Michael Frenkel, Sofia Davydycheva
Принадлежит: Individual

A method for detecting a subterranean anomaly is provided. The method includes receiving signal data derived from a plurality of transmitters and at least one receiver; calculating a relationship for selected combinations of measurements provided by the signal data; estimating weighting factors for each transmitter, for a condition where there is a substantially equivalent potential across each of the transmitters; applying the weighting factors to the data; and identifying the anomaly in weighted data. Apparatus are also provided.

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Номер записи: 3
31-01-2013 дата публикации

Wellbore logging performance verification method and apparatus

Номер: US20130030708A1
Автор: Randy Gold, Stanislav Wihelm Forgang
Принадлежит: Individual

A method for correcting a measurement of a property of a subsurface material includes: selecting an instrument having a test circuit and a separate sensor, the test circuit configured for generating a test signal having a characteristic that mimics a downhole measurement environment to generate correction information. The sensor is configured for: transmitting a signal into the subsurface material; and receiving a data signal from the subsurface material; wherein the test circuit and the sensor are switchably coupled to an electronics unit of the instrument. The sensor is further configured for: receiving the test signal from the test circuit in the electronics unit; using the electronics unit, measuring at least one output characteristic of the instrument; and applying the correction information to the data signal according to the measured output characteristic.

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Номер записи: 4
09-05-2013 дата публикации

DRILLING DYNAMICS MONITOR

Номер: US20130113491A1
Автор: Rodney Paul F.
Принадлежит: Halliburton Energy Services, Inc.

Procedures are described for monitoring dynamics along a drill string during the drilling process using only surface instrumentation or using a combination of surface and downhole instrumentation. Events such as drill collar whirl may be identified from signatures found in signals generated by an electromagnetic sensor such as a magnetometer and/or from a mechanical sensor such as accelerometer. Additional embodiments are described. 1. A method comprising:receiving a magnetometer signal from a magnetometer on a drilling rig at an above-ground location; andidentifying a mechanical event in a drill string of the drilling rig as indicated by a corresponding signature in the magnetometer signal, wherein the signature in the magnetometer signal includes an abrupt increase in high frequency content.2. The method of wherein the event identified is drill collar whirl and further comprising identifying the event from an approximate frequency doubling in the magnetometer signal.3. The method of wherein the event identified is drill collar whirl and further comprising taking preventative action after identification of the whirl in order to prevent the whirl from fully setting in.4. The method of wherein the event identified is contact of the drill string with a casing of the well being drilled and further comprising identifying the event from an impulsive event in the magnetometer signal that is approximately periodic.5. The method wherein the event identified is contact of the drill string with a casing of the well being drilled and further comprising identifying the event from an approximately periodic signal in the magnetometer signal that is found to correspond to a first time derivative of the rotation frequency of the drill string that may coincide with any orbiting of the drill string around the inside of the well casing.6. The method of further comprising receiving the magnetometer signal from the magnetometer mounted on the draw works of the drilling rig.7. The method ...

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Номер записи: 5
06-06-2013 дата публикации

Induction Coil Impedance Modeling Using Equivalent Circuit Parameters

Номер: US20130141103A1
Автор: Roshtal Richard A., ZHANG Hong
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

Methods and related systems are described for making an electromagnetic induction survey of a formation surrounding a cased section of a borehole. An electromagnetic transmitter and/or receiver is deployed into the cased section of the borehole. Electromagnetic survey measurements and impedance measurements relating to impedance of the transmitter and/or receiver are made while deployed in the section of the borehole. Compensation is made for the attenuation amplitude and/or phase in the electromagnetic survey measurements due to the conductive casing. The compensation is based on the impedance measurements and equivalent circuit parameters. The impedance measurements are correlated with numerical modeling results of a purely inductive electromagnetic transducer, and calculated equivalent circuit parameters are combined with the numerical modeling results. 1. A system for making electromagnetic survey measurements of a formation surrounding a borehole having a casing comprising:an electromagnetic transducer deployable into a section of the borehole that is cased with a conductive casing, the electromagnetic transducer operable to take the electromagnetic survey measurements and at least one impedance measurement relating to the impedance of the electromagnetic transducer while deployed in the section of the borehole; anda processing system configured and arranged to compensate for attenuation and/or phase of the electromagnetic survey measurements due to the conductive casing, the compensation being based at least in part on the impedance measurement and one or more equivalent circuit parameters.2. A system according to wherein the one or more equivalent circuit parameters are selected from the group consisting of inductance claim 1 , resistance claim 1 , conductance claim 1 , capacitance claim 1 , elastance claim 1 , reluctance and reactance.3. A system according to wherein the compensation includes an association of the impedance measurements with numerical ...

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Номер записи: 6
13-06-2013 дата публикации

METHOD FOR SEPARATING TARGET SIGNALS FROM UNWANTED SIGNALS IN A METAL DETECTOR

Номер: US20130147487A1
Автор: HARMER Gregory Peter
Принадлежит: MINELAB ELECTRONICS PTY LIMITED

A method for detecting electrically conductive targets in soil including the steps of: generating a transmit magnetic field for transmission into the soil based on a transmit signal; receiving a receive magnetic field; providing a receive signal induced by the receive magnetic field; selecting at least two models, each approximating a form of a signal due to a different type of source; processing the receive signal using the at least two models to produce at least two independent signals, each representing a component of the receive signal due to a different type of source; and producing, based on at least two independent signals, an indicator output signal indicative of the presence of the electrically conductive target. 1. A method for detecting electrically conductive targets in soil comprising:generating a transmit magnetic field for transmission into the soil based on a transmit signal;receiving a receive magnetic field;providing a receive signal induced by the receive magnetic field;selecting at least two models, each approximating a form of a signal due to a different type of source;processing the receive signal using the at least two models to produce at least two independent signals, each representing a component of the receive signal due to a different type of source; andproducing, based on at least two independent signals, an indicator output signal indicative of the presence of the electrically conductive target.2. A method according to claim 1 , wherein the selecting at least two models includes:selecting a model modelling a signal due to a ferrous object.3. A method according to claim 1 , wherein the selecting at least two models includes:selecting a model modelling a signal due to a non-ferrous electrically conductive object.4. A method according to claim 1 , wherein the selecting at least two models includes:selecting a model modelling a signal due to the soil.5. A method according to claim 1 , wherein the at least two independent signals are further ...

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Номер записи: 7
13-06-2013 дата публикации

Method and System of Determining Parameters Associated with a Hydrocarbon Bearing Formation Beneath a Sea Bed

Номер: US20130151155A1
Автор: L. Erik Magnus BJORNEMO, U. Peter LINDQVIST
Принадлежит: PGS GEOPHYSICAL AS

Determining parameters associated with a hydrocarbon bearing formation beneath a sea bed. At least some of the illustrative embodiments are methods including: obtaining data gathered regarding a plurality of distinct readings by sensors, the readings responsive to a source of electrical energy towed in water above the hydrocarbon bearing formation, the sensors sense an electrical parameter associated with the source; combining a first datum associated with a first path of travel of the source with a second datum associated with a second path of travel of the source, the second path of travel distinct from the first path of travel, and the combining creates a first combined datum; and determining the parameter associated with the hydrocarbon bearing formation by evaluating the first combined datum.

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Номер записи: 8
13-06-2013 дата публикации

Electrical Submersible Pump Monitoring and Failure Prediction

Номер: US20130151156A1
Автор: Bukhamseen Ahmed Yasin, Noui-Mehidi Mohamed Nabil
Принадлежит: Saudi Arabian Oil Company

Current supplied to electrical submersible pumps in wells is monitored, and signal processing based on wavelet analysis and phase diagram analysis is performed on the data obtained from monitoring. An incipient malfunction of the electrical submersible pump, such as one due to scale build-up in and around the pump, can be detected at an early stage. 1. An apparatus for monitoring performance of an electrical submersible pump in a well based on analysis of pump electrical current , comprising:an analyzer of the frequency spectrum of the energy in the pump electrical current;a wavelet analyzer of the waveform of the pump electrical current identifying time variations of the pump electrical current;an analyzer of the pump electrical current to identify dynamic behavior of the pump during pumping;a phase space analyzer forming a measure of the identified dynamic behavior of the pump based on fluctuations in the pump electrical current; anda graphical interface forming indications from the analyzers for monitoring performance of the pump to detect disturbances in performance of the pump.2. The apparatus of claim 1 , wherein the frequency spectrum comprises a Fast Fourier Transform analyzer.3. The apparatus of claim 1 , wherein the wavelet analyzer comprises a wavelet transform analyzer applying an adjustable wavelet to the pump electrical current waveform to analyze frequency components of pump electrical current.4. The apparatus of claim 1 , wherein the dynamic behavior analyzer comprises an analyzer sampling the pump electrical current waveform at different time intervals claim 1 , and performing mutual information analysis of the sampled pump electrical current waveform.5. The apparatus of claim 3 , wherein the dynamic behavior analyzer further forms an identification of attractors for the phase space analyzer based on the dynamic behavior of the pump.6. The apparatus of claim 1 , wherein the phase space analyzer forms an indication in a phase space diagram of the ...

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Номер записи: 9
01-08-2013 дата публикации

MONITORING OF DRINKING WATER AQUIFERS DURING POSSIBLE CONTAMINATION OPERATIONS

Номер: US20130197810A1
Автор: Haas Allan Kayser, Revil Andre
Принадлежит:

A method and system for monitoring the integrity of a water aquifer is provided. The method and system generally monitors an aquifer for subsurface fractures, fluid intrusion, or water contamination. In one embodiment, the method and system may be utilized before, during, and after contaminating operations to monitor a water aquifer and generate reports detailing the effect of the contaminating operations on the water aquifer. The reports, and associated raw data, may be used as legal documents. For example, in one embodiment, an independent company is responsible for monitoring the aquifer and generating reports, which are then submitted to all interested parties, including the state for regulatory purposes. 1. A method for monitoring an aquifer proximate to a potentially contaminating operation , the method comprising:drilling at least one monitoring wells;positioning at least one sensor in the at least one monitoring wells;acquiring measurements with the at least one sensor; andanalyzing the measurements for disturbance signals.2. The method of claim 1 , wherein the at least one sensor is selected from the group consisting of at least one pressure sensor claim 1 , at least one temperature sensor claim 1 , at least one chemical sensor claim 1 , at least one vector magnetometer claim 1 , at least one electric potential sensor employing at least one non-polarizing electrode claim 1 , at least one electric potential sensor employing at least one metallic electrode claim 1 , at least one electric potential sensor employing at least one non-polarizing electrode and at least one polarizing electrode and combinations thereof.3. The method of claim 2 , wherein the at least one sensor is the at least one electric potential sensor employing the at least one metallic electrode.4. The method of claim 2 , wherein the at least one sensor is the at least one non-polarizing electrode.5. The method of claim 2 , wherein the at least one sensor is the at least one electric potential ...

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Номер записи: 10
03-10-2013 дата публикации

ASSET DETECTION APPARATUS AND METHOD

Номер: US20130257434A1
Автор: Burd Harvey John, Edwards David John, Hao Tong, Stevens Christopher John
Принадлежит: ISIS INNOVATION LTD

Embodiments of the present invention provide a resonant assembly (), comprising first and second resonant members (), the first and second resonant members each being configured to resonate at a respective different resonant frequency when excited by an electromagnetic field, wherein at least one resonant member comprises a discontinuous loop () having at least one capacitive element () connected between free-ends of the loop. 118-. (canceled)19. A resonant assembly for identification of a buried asset , comprising first and second resonant members , the first and second resonant members each being configured to resonate at a respective different resonant kHz regime frequency when excited by an electromagnetic field , wherein at least one resonant member comprises a discontinuous loop having at least one inductive element and at least two capacitive elements connected between the free-ends of the loop , such that the assembly is configured to resonate at first and second resonant frequencies in the kHz regime when the loop is excited by the electromagnetic field.20. The resonant assembly of claim 19 , wherein the at least one inductive element and at least two capacitive elements are arranged such that the assembly comprises a first resonant circuit formed by the loop and at least one capacitive element arranged to resonant at the first resonant frequency and a second resonant circuit formed by the inductive element and at least one capacitive element arranged to resonant at the second resonant frequency.21. The resonant assembly of claim 20 , wherein capacitive values of the at least two capacitive elements and inductive values of the loop and at least one inductive element are selected such that excitation of the loop by the electromagnetic field excites first and second resonant modes of the assembly substantially equally.22. The resonant assembly of claim 20 , wherein the at least one inductive element and at least two capacitive elements connected between the ...

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Номер записи: 11
14-11-2013 дата публикации

Methods, Systems and Apparatuses for Sensing and Measuring the Electric Field within the Earth

Номер: US20130300419A1
Автор: Hibbs Andrew D.
Принадлежит: GroundMetrics, Inc.

Methods, systems, and apparatuses for measuring an electric potential in the earth, which includes a first sensor are disclosed. The first sensor includes a sensing plate for placement in an environment in close proximity to the earth. The sensing plate has an operative capacitive coupling with the earth and measures the earth's electric potential. The sensor also includes a barrier providing electrochemical segregation between the sensing plate and the earth and an amplifier having at least one stage for receiving and amplifying a first signal carrying the potential measured by the sensing plate. The sensor also includes a first connection carrying the first signal from the sensing plate to the amplifier; and a reference voltage for application to the first stage of the amplifier, the reference voltage providing a reference against which the potential measured by the sensing plate is compared. Other embodiments are described and claimed. 1. A system for measuring an electric potential in the earth , comprising:a first sensor, comprising:a sensing plate for placement in an environment in close proximity to the earth, the sensing plate having operative capacitive coupling with the earth and measuring the earth's electric potential,a barrier providing electrochemical segregation between the sensing plate and the earth;an amplifier having at least one stage for receiving and amplifying a first signal carrying the potential measured by the sensing plate;a first connection carrying the first signal from the sensing plate to the amplifier; anda reference voltage for application to the first stage of the amplifier, the reference voltage providing a reference against which the potential measured by the sensing plate is compared.25-. (canceled)6. The system of claim 1 , wherein the barrier is provided by the character of one or more materials that the sensing plate is made of claim 1 , the one or more materials being non-reactive with the earth's surface.7. The system of ...

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Номер записи: 12
21-11-2013 дата публикации

METHODS AND SYSTEMS FOR ESTIMATING FORMATION RESISTIVITY AND POROSITY

Номер: US20130307546A1
Автор: Bittar Michael, Kainer Gary, LI Jing, Rourke Marvin
Принадлежит: Halliburton Energy Services, Inc.

A method for analyzing a subterranean formation porosity is disclosed. The apparent dielectric constant of the subterranean formation and an apparent resistivity of the subterranean formation are measured. The measured values are used to determine a measured formation loss tangent. The formation water loss tangent can be expressed by the water dielectric constant and the water resistivity. The measured formation loss tangent and the formation water loss tangent are then used to determine at least one of an actual dielectric constant of the subterranean formation water and an actual resistivity of the subterranean formation water. The actual formation porosity may be obtained using the estimated water resistivity and water dielectric constant. 1. A method for analyzing a subterranean formation comprising:measuring an apparent dielectric constant of the subterranean formation and an apparent resistivity of the subterranean formation;using the measured apparent dielectric constant of the subterranean formation and the measured apparent resistivity of the subterranean formation to determine a measured formation loss tangent;determining a formation water loss tangent;determining a water dielectric constant; andusing the measured formation loss tangent, the formation water loss tangent, and the water dielectric constant to determine at least one of an actual dielectric constant of the subterranean formation and an actual resistivity of the subterranean formation.2. The method of claim 1 , wherein a high frequency dielectric tool measures one of the apparent dielectric constant of the subterranean formation and the apparent resistivity of the subterranean formation.3. The method of claim 1 , further comprising determining an actual formation porosity.4. the method of claim 3 , wherein the actual formation porosity is determined using a Complex Refractive Index Method.5. The method of claim 1 , wherein determining the formation water loss tangent comprises defining the ...

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Номер записи: 13
21-11-2013 дата публикации

WIDE ACTIVATION ANGLE PINCH SENSOR SECTION

Номер: US20130307567A1
Автор: Bolbocianu Liviu, Isailovic Rade
Принадлежит: Magna Closures Inc.

In an aspect, a pinch sensor is provided, comprising: an elongate non-conductive casing enclosing first, second, and third elongate conductive electrodes; the first and second electrodes being separated by a portion of the casing, a capacitance between the first and second electrodes changing when an obstacle approaches the first electrode to provide a proximity indication of the obstacle to the pinch sensor; and, the second and third electrodes being separated by an air gap formed in the casing, a resistance between the second and third electrodes changing when the second and third electrodes come into contact upon compression of the casing by the obstacle to provide a contact indication of the obstacle with the pinch sensor. 1. A pinch sensor , comprising:an elongate non-conductive casing having a base;a first wire and a first conductive material around the first wire, positioned inside of the casing proximate the base; anda second wire and a second conductive material around the second wire, positioned inside the casing away from the base,wherein the casing has side walls between the first and second conductive materials,wherein the first conductive material has a central region that is a plateau, and left and right regions that slope downward towards the base from the central region towards the side walls.2. A pinch sensor as claimed in claim 1 , wherein the side walls have bend points therein to initiate bending of the side walls when the sensor incurs a force in a downward direction towards the base.3. A pinch sensor as claimed in claim 2 , wherein the casing has lateral maxima and the bend points are between the lateral maxima and the base.4. A pinch sensor as claimed in claim 2 , wherein the left and right regions that slope downward towards the base at an angle that permits the activation of the pinch sensor by an activation force acting at an angle of less than about 37.5 degrees from a normal plane to the base.5. A pinch sensor claim 2 , comprising:an ...

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Номер записи: 14
28-11-2013 дата публикации

ELECTRICALLY ACTIVE HAND-OPERABLE EXCAVATION APPARATUS

Номер: US20130313843A1
Автор: Hernandez Rigoberto
Принадлежит:

The present invention is a hand-operable excavation apparatus for detecting buried electrical cable. The hand-operable excavation apparatus comprises of a unitary structure having a handle and an electrically conductive portion. At least one electric field sensor is secured to the electrically conductive portion to monitor electrical fields in proximity to the end of the device during ground breaking for activation of an alerting system when the preset value is greater than a predetermined voltage for notifying the excavator of buried electrical cable. 1. A hand-operable excavation apparatus for detecting buried electrical cable comprising:a hand operable excavation apparatus in the form of a unitary device having a first end and a second end, said first end being a handle and said second end having an electrically conductive portion, said electrically conductive portion being constructed and arranged for breaking a ground material; andat least one electric field sensor, which is operable to sense a change in an electrical field within ground material, which is indicative of a buried cable, said electric field sensor in electrical communication with said electrically conductive portion;wherein said at least one electric field sensor senses the neutral to earth voltage gradient between said electrically conductive portion and a ground.2. The hand-operable excavation apparatus of claim 1 , wherein said electrically conductive portion is a metal blade.3. The hand-operable excavation apparatus of claim 1 , wherein said electrically conductive portion is constructed and arranged to lift ground material.4. The hand-operable excavation apparatus of claim 3 , wherein said electrically conductive portion is a shovel.5. The hand-operable excavation apparatus of ; wherein said electric field sensor is a voltage detector mounted on said unitary device.6. The hand-operable excavation apparatus of claim 5 , wherein said voltage detector comprises at least one alert system for ...

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Номер записи: 15
05-12-2013 дата публикации

TECHNIQUES FOR SURFACE EXPLORATION AND MONITORING

Номер: US20130320984A1
Автор: Berglund Bo, Lagmanson Liz, Lagmanson Markus, Lagmanson Mats
Принадлежит: ADVANCED GEOSCIENCES, INC

Techniques for surface exploration and monitoring are presented. In representative embodiments, a system is provided that cars perform multiple types of measurements of a surface. For example a single system of survey probes and one or more survey controllers can be used to offer both seismic and electrical measurements. A survey controller can be configured to automatically poll survey probes to obtain identifiers of the probes aid determine a relative order the probes. Survey probes can be configured to; (a) collect signals associated with a surface; (b) digitize the signals to form digital data; and (c) store the digital data for later transmission to the survey controller. Relative positions of survey probes can be automatically determined using a transmitting beacon or other techniques. Survey probes can automatically disconnect from a power conduit while measuring a surface property and operate using an internal source of power when disconnected, to reduce noise. The survey controller can be remotely accessible through a computer network for remote control of the survey probes. 1. (canceled)2. (canceled)3. A system for introducing electrical currents into a surface as stimulus for geophysical measurements , the system comprising:a plurality of survey probes for electrode contact with the surface at respective points thereof, wherein respective ones of the survey probes are configurable as current injection-type and current receiver-type survey probes for introduction of the electrical current stimulus into the surface;a current injection power supply coupled to supply the electrical current to, and to receive return current from, respective ones of the survey probes; anda controller is configured to individually and selectively program plural of the current injection-type survey probes to inject current into the surface and to individually and selectively program plural of the current receiver-type survey probes to provide respective return paths for current ...

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Номер записи: 16
19-12-2013 дата публикации

SYSTEMS AND METHODS FOR REMOTE ELECTROMAGNETIC EXPLORATION FOR MINERAL AND ENERGY RESOURCES USING STATIONARY LONG-RANGE TRANSMITTERS

Номер: US20130338923A1
Автор: Zhdanov Michael S.
Принадлежит: TechnoImaging, LLC

A method for measuring the resistivity of geologic formations is described. An electromagnetic field may be generated using at least one stationary long-range transmitter. The frequency of the electromagnetic field may be between and/or including the ULF/ELF range. At least one component of the electromagnetic field may be measured by land, marine, submarine, and/or airborne receiver. A conductivity distribution may be determined based on the at least one measured component. The determined conductivity distribution may be correlated with geological formations and/or hydrocarbon deposits. 1. A method for measuring the resistivity of sea-bed , ice , or geologic formations comprising:generating an electromagnetic field using at least one stationary long-range or short-range transmitter, wherein the electromagnetic field is generated by a transmitter formed by a system of grounded electric bipoles of at least 500 meters in length or formed by a loop of wire with the radius of at least 500 meters, wherein the frequency of the electromagnetic field is between or including the ULF/ELF range;measuring at least one component of the electromagnetic field using at least one mobile underwater receiver that is remotely located from the at least one long-range or short-range transmitter;determining a conductivity distribution based on the at least one measured component; andcorrelating the determined conductivity distribution with geological formations or hydrocarbon deposits.2. The method of claim 1 , wherein generating an electromagnetic field further comprises generating the electromagnetic field over a plurality of frequencies or in the time domain.3. The method of claim 2 , wherein generating the electromagnetic field in the time domain further comprises using a magnetohydrodynamic (MHD) generator.4. The method of claim 1 , wherein generating an electromagnetic field further comprises locating a transmitter on land claim 1 , on the sea ice claim 1 , or in the sea.5. The ...

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Номер записи: 17
26-12-2013 дата публикации

Impedance Spectroscopy Measurement Device And Methods For Analysis Of Live Reservoir Fluids And Assessment Of In-Situ Corrosion Of Multiple Alloys

Номер: US20130342211A1
Автор: Bhavsar Rashmi B., Borman Craig, CHEN Kuo-Chiang, Karuppoor Srinand S., Lewis Richard, Marya Manuel P., Mohan Amit, Mullins Oliver C., Reyes Hernandez Tatiana, Roy Indranil
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

A method for analyzing fluid withdrawn from a subsurface formation includes disposing the withdrawn fluid in a chamber and maintaining the fluid in the chamber substantially at a same temperature and pressure as exists in the subsurface formation. Electric current is passed through the fluid in the chamber using at least one electrode made from a selected metal, the electric current comprising direct current and alternating current of frequency sufficient to determine at least one of (i) resistance of the fluid sample in the chamber directly and (ii) from the direct current determine a polarization resistance of the at least one electrode. 1. A formation fluid sample testing instrument , comprising:a sealed chamber for receiving a sample of formation fluid, the sealed chamber maintainable at a selected temperature and pressure;at least one electrode sealingly passing through a wall of the sealed chamber and extended into contact with the sample of fluid in the chamber; anda power supply electrically connected to the at least one electrode, the power supply configured to generate direct current and alternating current having a selectable frequency.2. The instrument of claim 1 , wherein the alternating current has a frequency selectable to enable measuring resistance of fluid in the chamber; andwherein the direct current is used to determine a full circuit resistance including the fluid and a polarization resistance of the at least one electrode.3. The instrument of claim 1 , wherein the sealed chamber is disposed in an instrument housing configured to traverse a wellbore drilled through subsurface formations claim 1 , the instrument housing having at least one probe placeable in sealed communication with a selected subsurface formation and controllable flow lines and valves configured to selectably move fluid from the selected formation to an interior of the sealed chamber.4. The instrument of claim 3 , further comprising processing logic for determining at least one ...

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Номер записи: 18
09-01-2014 дата публикации

MULTI-COMPONENT ELECTROMAGNETIC PROSPECTING APPARATUS AND METHOD OF USE THEREOF

Номер: US20140012505A1
Автор: Smith Richard
Принадлежит: LAURENTIAN UNIVERSITY OF SUDBURY

Systems and methods are provided for the detection of conductive bodies using three-component electric or magnetic dipole transmitters. The fields from multiple transmitters can be combined to enhance fields at specific locations and in specific orientation. A one- two- or three-component receiver or receiver array is provided for detecting the secondary field radiated by a conductive body. The data from multiple receivers can be combined to enhance the response at a specific sensing location with a specific orientation. Another method is provided in which a three-component transmitter and receiver are separated by an arbitrary distance, and where the position and orientation of the receiver relative to the transmitter are calculated, allowing the response of a highly conductive body to be detected. 2. The method according to claim 1 , further comprising the steps of:h) selecting one or more of an additional sensing direction and an additional sensing position; andi) repeating steps d) to g).3. The method according to further comprising repeating steps h) and i) one or more times to scan one or more of a spatial and angular region.4. The method according to wherein a three-component transmitter is provided to one or more of said different transmitter locations by translating a single three-component transmitter.5. The method according to wherein a physically separate three-component transmitter is provided at one or more of said different transmitter locations.6. The method according to wherein a three-component receiver is provided to one or more of said different receiver locations by translating a single three-component receiver.7. The method according to wherein a physically separate three-component receiver is provided at one or more of said different receiver locations.8. The method according to wherein each said three-component receiver comprises three dipole receivers suitably arranged to be capable of detecting a electromagnetic field in any direction.9. ...

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Номер записи: 19
30-01-2014 дата публикации

Measuring Apparatus, Particularly Measuring Apparatus for Sensing Metal Articles

Номер: US20140028301A1
Автор: Albrecht Andrej, Hahl Markus, Wieland Christoph
Принадлежит: ROBERT BOSCH GMBH

A measuring apparatus for sensing metal articles, comprises a transmission coil for producing a magnetic field, two reception coils, which are oriented relative to one another, and electrically connected to one another, in the region of the magnetic field such that a resulting received voltage on the reception coils is zero when the magnetic field acts on both reception coils in the same way, a control device configured to supply the transmission coil with an alternating transmission voltage, and a determination device configured to determine the metal article on the basis of the received voltage. In this arrangement, the control device is further configured to control RMS value for the transmission voltage such that the received voltage remains below a predetermined threshold value. 1. A measuring apparatus for sensing metal articles comprising:a transmission coil configured to generate a magnetic field;two reception coils which are oriented relative to one another and electrically connected to one another in a region of the magnetic field in such a way that a resulting reception voltage across the two reception coils is zero when the magnetic field acts on the two reception coils in the same way;a control device configured (i) to supply an alternating transmission voltage to the transmission coil, and (ii) to change a root mean square value of the alternating transmission voltage in such a way that the resulting reception voltage remains below a predetermined threshold value irrespective of the size of the metal article; anda determination device configured to determine the metal article on the basis of the resulting reception voltage.2. The measuring apparatus as claimed in claim 1 , wherein the control device is further configured (i) to provide a pulse-width-modulated signal to the transmission coil claim 1 , and (ii) to control the root mean square value of the alternating transmission voltage on the basis of a duty cycle of the pulse-width-modulated signal.3. ...

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Номер записи: 20
06-02-2014 дата публикации

NUCLEAR MAGNETIC RESONANCE LOGGING TOOL HAVING AN ARRAY OF ANTENNAS

Номер: US20140035586A1
Автор: Rodney Paul F.
Принадлежит: Halliburton Energy Services, Inc.

An improved system and method for ranging while drilling, in effect, induces a dynamic hot spot on the casing of a nearby well. The induced hot spot acts as a magnetic source that can be reliably detected from within the drillstring and in such a manner as to infer the relative position and orientation of the casing to the drillstring. At least some disclosed method embodiments employ one or more rotating magnets in the drillstring, an array of at least two magnetometers in the drillstring and one or more phase-locked loops that are used to enhance the signal to noise ratio of the magnetic signal scattered off of the casing from the rotating magnetic field. The rotating magnet or magnets may be magnetic dipoles or magnetic multipoles, and may be modulated to enable the use of multiple magnetic field sources. 1. A ranging while drilling system that comprises: a magnetic source that induces a magnetic moment in a casing string;', 'at least one three-axis magnetometer that detects a field from the induced magnetic moment; and', 'a sensor that provides a signal indicative of a rotational orientation of the magnetic source; and, 'a drillstring havinga processor that determines a relative distance and direction of the casing string from measurements by the sensor and the at least one three-axis magnetometer.2. The system of claim 1 , wherein the sensor comprises a second three-axis magnetometer.3. The system of claim 1 , wherein the sensor is in a set consisting of gyroscopes claim 1 , accelerometers claim 1 , and optical and acoustic borehole wall variation sensors.4. The system of claim 1 , wherein the at least one three-axis magnetometer is one of an array of axially-spaced magnetometers.5. The system of claim 1 , further comprising a steering mechanism that is guided at least in part based on said distance and direction.6. The system of claim 1 , wherein the magnetic source comprises a permanent magnet.7. The system of claim 6 , wherein the magnetic source has ...

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Номер записи: 21
27-02-2014 дата публикации

APPARATUS AND METHOD FOR SENSING A PIPE COUPLER WITHIN AN OIL WELL STRUCTURE

Номер: US20140055141A1
Автор: Carlson Aaron Mitchell
Принадлежит:

A system for sensing a pipe joint within a well structure bore comprises a body connectable in line with the well structure. The body has a central bore therethrough and includes a plurality of blind bores extending radially inwards from the outer surface. The system further includes at least one sleeve being locatable within one of the plurality of blind bores wherein each of the sleeves has a magnet located at an end thereof at least one sensor being locatable within one of the at least one sleeves. The at least one sensor is operable to output a signal representing the width of a metallic object located within the central bore. The system may further include a display operable to receive the output signal from the at least one sensor and to display an output to a user indicating the width of the metallic object within the central bore. 1. A system for sensing a pipe joint within a well structure , the system comprising:a body connectable in line with said well structure, said body having a central bore therethrough along a central axis corresponding to a central bore of said well structure and an outer surface, said body including a plurality of blind bores extending radially inwards from said outer surface;at least one sleeve being locatable within one of said plurality of blind bores, each of said sleeves having a magnet located at an end thereof; andat least one sensor being locatable within one of said at least one sleeves, said at least one sensor being operable to output a signal representing the width of a metallic object located within said central bore.2. The system of wherein said at least one sleeve is formed of a ferromagnetic material.3. The system of wherein said body comprises a spool.4. The system of wherein said spool includes a plurality of connection bores extending through said spool parallel to said central axis.5. The system of wherein said blind bores are located between said connection bores.6. The system of wherein said spool is formed of ...

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Номер записи: 22
06-03-2014 дата публикации

CATHODIC PROTECTION MONITORING METHOD, SYSTEM AND COMPONENTS

Номер: US20140062490A1
Автор: COX Robert Leslie, HADDY JOHN RICHARD, NEUMAN Michael Alexander St Leger, ROBERTSON David Edward
Принадлежит:

Cathodic protection (CP) monitoring methods, systems and system components that provide regular (typically daily or more frequent) potential data collection for accurate assessment of CP systems. The methods, systems and components of the invention are used for remote monitoring of passive sacrificial anode CP systems and more particularly for monitoring of CP protection for buried storage tanks. These systems have on-site components for collection of data and transmission of data to remote databases and can employ computer-implemented and/or system operator assessed data processing and interpretation of data to assess protection status of a given structure and further to generate appropriate reports of protection status and collected and processed data. 1. A method for monitoring the effectiveness of a cathodic protection system of an underground metal structure which comprises:positioning a metal coupon and an in situ reference electrode underground at a predetermined position with respect to structure, wherein the metal coupon and in situ reference electrode are integrated into a stake, wherein the metal coupon and reference electrode are separated from each other by a selected distance, the stake facilitating positioning of the metal coupon and reference electrode from above ground with respect to the underground structure and electrically connecting the structure to the metal coupon;measuring the potential difference between the metal coupon and the in situ reference electrode; andrepeating potential difference measuring on a selected measurement schedule to monitor the effectiveness of the cathodic protection system.2. The method of wherein the structure is electrically connected to the metal coupon through an electrical switch which opens on activation to disconnect the metal coupon from the structure and wherein the switch is activated to open only when a potential measurement is being taken.3. The method of wherein measuring the potential difference between ...

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Номер записи: 23
10-04-2014 дата публикации

SHIELDINGS FOR METAL DETECTOR HEADS AND MANUFACTURING METHODS THEREOF

Номер: US20140097831A1
Автор: Whaley Brian A.
Принадлежит: NIITEK, Inc.

Systems and methods for shielding a metal detector head include placement of conductive shielding around the coils of the head to reduce the effects of capacitance variation between the coils and their surroundings. 1. A metal detector head comprising:a transmit-receive coil assembly; andshielding positioned between the transmit-receive coil assembly and an external environment;wherein the transmit-receive coil assembly comprises at least one receive coil and at least one transmit coil, the transmit coil positioned in spaced relation with the receive coil;wherein the shielding is configured to be flexible, conductive, and non-magnetic;wherein the shielding is configured to stabilize capacitance between the shielding and the at least one receive coil and the at least one transmit coil; andwherein the shielding is configured to reduce effect on the metal detector head from changing capacitance caused by objects in the external environment.2. The apparatus of further comprising at least one coil form of the coil form set: a receive coil form and a transmit coil form;wherein the transmit coil form is configured such that transmit coil wire can be wound around the transmit coil form;wherein the receive coil form is configured such that receive coil wire can be wound around the receive coil form; andwherein the at least one form of the form set consists of material that is nonmagnetic and non-conductive.3. The apparatus of claim 1 , wherein the shielding comprises a woven metal mesh.4. The apparatus of claim 1 , wherein the shielding is bonded to a surface of the metal detector head using a glue.5. The apparatus of claim 1 , wherein the shielding is bonded to a surface of the metal detector head using a solvent claim 1 , wherein the solvent is configured to at least partially dissolve an outer layer of the surface claim 1 , and wherein the solvent is configured to solidify so as to bond the shielding and the surface into a unitary structure.6. The apparatus of further ...

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Номер записи: 24
04-01-2018 дата публикации

TWO-DIMENSIONAL CAPACITIVE SENSOR FOR LOCATING THE PRESENCE OF AN OBJECT AND/OR OF AN INDIVIDUAL

Номер: US20180003847A1
Автор: CASIMIRO Jessie, HAFFNER Julien, Hole Stéphane, Mabire Philippe, MARGO Cedric, OUSSAR Yacine
Принадлежит:

Disclosed is a capacitive sensor () for locating the presence of an individual and/or of an object, the sensor () including:—a first layer (C) including at least one first electrode (E, i∈[1,N]) extending in a first direction (d);—a second layer (C) having at least one second electrode (E, j∈[1,M]) extending in a second direction (d); in which the first direction (d) is different from the second direction (d), and in which the first layer (C) is electrically insulated from the second layer (C). 113-. (canceled)14. A capacitive sensor for detecting , locating a presence , evaluating a floor surface and/or tracking an activity of an individual and/or an object , a first layer comprising at least one first electrode extending in a first direction; and', 'a second layer having at least one second electrode extending in a second direction;, 'said sensor comprisingwherein the first direction is different from the second direction, andwherein the first layer is electrically insulated from the second layer, an electronic driving module configured:', 'to independently apply respective voltages on each of the first and second electrodes including at least one zero voltage on at least one of the first and second electrodes, and', 'to measure electrical charges accumulated on each of the first and second electrodes,', 'an information processing module configured for analyzing a spatial distribution of variations of the measured electrical charges for each one of the first and second electrodes by determining:', 'information dependent on a coupling to ground of said one of the first and second electrodes if the voltage applied to said one of the first and second electrodes is not zero; or', 'information independent of the coupling to ground if the voltage applied to said one of the first and second electrodes is zero and the voltage applied to at least one other electrode of the first and second electrodes is not zero;, 'the capacitive sensor further comprisingin order to detect ...

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Номер записи: 25
04-01-2018 дата публикации

DOWNHOLE ELECTROMAGNETIC SENSING TECHNIQUES

Номер: US20180003849A1
Автор: Bhoite Sameer, Chung Jung Kee, Dobos Jaroslav, Homan Dean, Tollefsen Edward Michael
Принадлежит:

An electromagnetic (EM) telemetry system includes an EM transmitter configured to transmit EM signals downhole and multiple sensors each configured to communicate with the EM transmitter and with another of the multiple sensors. Each sensor is placed a distance from another sensor along a length of a wellbore in the EM telemetry system. The EM telemetry system also includes a processor configured to select two or more sensors of the multiple sensors based on a signal to noise ratio (SNR) of an EM signal received from the two or more selected sensors, a depth of the EM transmitter, or both. 1. An electromagnetic (EM) telemetry system comprising:an EM transmitter configured to transmit EM signals downhole;multiple sensors each configured to communicate with the EM transmitter and with another of the multiple sensors, wherein each sensor of the multiple sensors is placed a distance from another sensor along a length of a wellbore in the EM telemetry system; anda processor configured to select two or more sensors of the multiple sensors based on a signal to noise ratio (SNR) of an EM signal received from the two or more selected sensors, a depth of the EM transmitter, or both.2. The EM telemetry system of claim 1 , wherein the multiple sensors are each in contact with an electrically-conductive member in the wellbore.3. The EM telemetry system of claim 2 , wherein the electrically-conductive member comprises a casing.4. The EM telemetry system of claim 2 , wherein one or more of the multiple sensors comprise spring-loaded contact points configured to contact the electrically-conductive member.5. The EM telemetry system of claim 1 , wherein the multiple sensors are each in contact with a formation in the wellbore.6. The EM telemetry system of claim 5 , wherein one or more of the multiple sensors comprise spring-loaded contact points configured to contact the formation.7. The EM telemetry system of claim 1 , wherein one or more of the multiple sensors comprise wire clamp ...

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Номер записи: 26
02-01-2020 дата публикации

Multistage Semiconductor Quantum Detector Circiut Incorporating Anticorrelation

Номер: US20200003925A1
Автор: Asker Michael Albert, Leipold Dirk Robert Walter, Maxim George Adrian
Принадлежит: equal1.labs Inc.

A novel and useful multistage semiconductor quantum detector circuit incorporating an anticorrelation mechanism. The quantum structure has at least the first stage sensor of the detector merged into the quantum structure in order to minimize loading of the quantum structure. The merged quantum structure and detector sensor may be encapsulated in a metal cage in order to provide enhanced rejection of the environmental parasitic electric and/or magnetic fields. A double boot strapping detector front-end configuration substantially eliminates the loading coming from both the gate-source and the gate-drain parasitic capacitances of the first sensor device of the detector that is connected to the quantum structure. In addition, differential detection aids in rejecting leakage, noise, and correlated interference coupling. Both dummy referenced differential detection as well as self-referenced differential detection may be employed in the detector. Moreover, correlated double sampling is used after preamplification in the detector in order to further reject noise and perturbations in the system. 1. A quantum detector coupled to a quantum circuit , comprising:a main quantum sensor coupled to a main semiconductor quantum well whose output is to be detected for a presence or absence of a particle previously injected thereto, said main quantum sensor operative to generate a main sensor signal;a dummy quantum sensor coupled to a dummy semiconductor quantum well whereby no particle is injected thereto, said dummy quantum sensor operative to generate a dummy sensor signal; andan amplifier and conditioning circuit operative to detect the presence or absence of said particle at the output of said main quantum circuit in accordance with a difference between said main sensor signal and said dummy sensor signal.2. The quantum detector according to claim 1 , wherein said main quantum sensor and said dummy quantum sensor each comprise at least one source follower device.3. The quantum ...

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Номер записи: 27
02-01-2020 дата публикации

METAL DETECTOR FOR BURIED AND ABANDONED CHEMICAL WEAPONS

Номер: US20200003926A1
Автор: GENG HUA, YANG YE-QING, ZHENG XIAO-PING
Принадлежит: TSINGHUA UNIVERSITY

A metal detector for buried and abandoned chemical weapons is provided, comprising: a transmitting circuit to transmit a detection signal; a frequency selection unit electrically connected to the transmitting circuit and configured to regulate a frequency of the detection signal; a receiving circuit to receive a reflected signal returned from the substance detected; an analog-digital conversion unit electrically connected to the receiving circuit and configured to convert the reflected signal into a digital signal; and a control unit electrically connected to the analog-digital conversion unit. In the present disclosure, the frequency of the detection signal can be regulated by changing a current frequency of the transmitting circuit, so that several forms of iron compound can be detected, thereby increasing the detection accuracy of the ACWs. 1. A metal detector for buried and abandoned chemical weapons , comprising:a transmitting circuit configured to transmit a detection signal;a frequency selection unit electrically connected to the transmitting circuit and configured to regulate a frequency of the detection signal;a receiving circuit configured to receive a reflected signal returned from the substance detected;an analog-digital conversion unit electrically connected to the receiving circuit and configured to convert the reflected signal into a digital signal; anda control unit electrically connected to the analog-digital conversion unit.2. The metal detector of claim 1 , wherein the frequency selection unit comprises:an operational amplifier; [{'b': 4', '4, 'a resistor R, two ends of the resistor R being respectively and electrically connected to an inverting input of the operational amplifier and an output of the operational amplifier;'}, {'b': 1', '1', '1, 'a resistor R, one end of the resistor R being grounded and the other end of the resistor R being electrically connected to the inverting input of the operational amplifier; and'}], 'a first amplifying ...

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Номер записи: 28
02-01-2020 дата публикации

DEVICE AND METHOD FOR GROUND SOURCE TRANSIENT ELECTROMAGNETIC NEAR-FIELD DETECTION AND RELATED DEVICE

Номер: US20200003927A1
Автор: CHEN Weiying, DI Qingyun, XUE Guoqiang, Yan Shu, Zhou Nannan
Принадлежит: Institute of Geology And Geophysics, Chinese Academy Of Sciences

The disclosure pertains to the field of electromagnetic exploration, and in particular relates to a device and method for ground source transient electromagnetic near-field detection and related device, with the purpose of solving the problems that the method for loop source transient electromagnetic detection has a relatively small detection depth and weak signals. The device of the disclosure includes an excitation source emitting device and a receiving device for signal detection. The excitation source emitting device includes an emission source, the emission source is a grounded conductor wire; the grounded conductor wire is used to convert a bipolar pulsed current into an electromagnetic field to be emitted underground; and the receiving device is configured for detecting a magnetic field and/or electric field signal in a survey line segment of an observation range of the grounded conductor wire using the method of areal sideline scanning survey. 1. A device for ground source transient electromagnetic near-field detection , the device comprising:an excitation source emitting device and a receiving device for signal detection, wherein the excitation source emitting device comprises an emission source, the emission source is a grounded conductor wire; the grounded conductor wire is used to convert a bipolar pulse current into an electromagnetic field to be emitted underground; andwherein the receiving device is configured for detecting a magnetic field and/or electric field signal in a survey line segment of an observation range of the grounded conductor wire by using the method of areal sideline scanning survey.2. The device for ground source transient electromagnetic near-field detection according to claim 1 , wherein the length of the grounded conductor wire satisfies the following conditions: {'br': None, 'sub': line', 'min, 'i': 'r', 'L≥L−3.5'}, 'the actual length L of the grounded conductor wire satisfies a condition of{'sub': 'min', 'claim-text': {'br': ...

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Номер записи: 29
03-01-2019 дата публикации

Apparatus and Method of Azimuthal Magnetic Sensor Array for Down-Hole Applications

Номер: US20190004202A1
Автор: Yu Yanxiang, Zhao Jinsong
Принадлежит: GOWell International, LLC

A system and method for inspecting a tube. An inspection system may comprise a telemetry module which may comprise an accelerometer. The inspection system may further comprise a centralizing module which may comprise at least three arms. The inspection system may further comprise an inspection device which may comprises a memory module, a differential amplifier, and a sensor array, wherein the sensor array comprises a transmitter, core, and plurality of receivers. The inspection system may also comprise a service device. A method for inspecting a tube may comprise inserting an inspection device into a tube, wherein the inspection device may comprise a sensor array and a memory unit. The method may further comprise energizing the sensor array, wherein an electro-magnetic field may be emitted from the sensor array. Additionally, the method may comprise inducing a magnetic field within the tubing, and measuring voltage with a receiver of the sensor array. 1. A tube inspection system , comprising:a telemetry module, wherein the telemetry module comprises an accelerometer;a centralizing module, wherein the centralizing module comprises at least three arms;an inspection device, wherein the inspection device comprises a memory module, a differential amplifier, and a sensor array, wherein the sensor array comprises a transmitter, a core, and a plurality of receivers; anda service device.2. The system of claim 1 , wherein the core comprise a silicone and iron mixture claim 1 , a cobalt and iron mixture claim 1 , a soft magnetic iron metal claim 1 , and/or any combination thereof.3. The system of claim 1 , wherein the plurality of receivers are disposed on the core to record in three hundred and sixty degrees.4. The system of claim 1 , wherein the plurality of receivers are disposed on the inspection device.5. The system of claim 1 , wherein the transmitter is a coil or a rare earth magnet.6. The system of claim 1 , wherein the core is disposed between a first transmitter and ...

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Номер записи: 30
03-01-2019 дата публикации

SYSTEM AND METHOD OF DETECTION OF AN OBJECT MADE WITH AN ELECTRICALLY POORLY CONDUCTIVE MATERIAL

Номер: US20190004204A1
Автор: SHI ZHENG
Принадлежит:

The present invention provides an object that can be simultaneously detected by a capacitive sensor and an RFID reader, an object detection system and the accompanying method. The object includes a body made partially or entirely with an electrically poorly conductive material, and an RFID tag embedded in the body. The object detection system includes a processor, the object, a capacitive sensor, and an RFID reader. Once the object is placed within the detection range of the capacitive sensor, the capacitive sensor detects the object through capacitive coupling, and transmits the detected information to the processor. And once the object is placed within the detection range of the RFID reader, the RFID reader transmits an RF signal that passes through the electrically poorly conductive material to reach the RFID tag, detects the RFID tag, and transmits the detected information to the processor. The RFID reader detects the object before, during or after the capacitive sensor detects the object. The system can enhance capacitive coupling between the object and the capacitive sensor and reduce shielding of radio frequency identification, and thus improve the detection sensitivity. 1. An object that can be simultaneously detected by a capacitive sensor and an RFID reader , comprising:a body, made partially or entirely with an electrically poorly conductive material;an RFID tag, embedded in the body.2. The object of claim 1 , wherein the electrically poorly conductive material extends from one side of the body to another side of the body claim 1 , through either the interior of the body or a surface of the body claim 1 , for an object that is made partially with the electrically poorly conductive material.3. The object of claim 1 , wherein the body assumes a structure comprising two layers claim 1 , and the RFID tag is placed between the two layers.4. The object of claim 1 , wherein the body assumes a pen structure comprising a nib and a holder claim 1 , and wherein the ...

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Номер записи: 31
13-01-2022 дата публикации

SCANNER FOR DETECTING OBJECTS BEHIND AN OPAQUE SURFACE

Номер: US20220011458A1
Автор: CHEN Chien-Hsu
Принадлежит:

Method and apparatus are provided for detecting objects behind an opaque surface. An exemplary device for detecting objects behind an opaque surface, comprising a housing configured to hold a plurality of components of the device; one or more sensors, coupled to the housing, configured to collect sensor data of an object behind the opaque surface, where the one or more sensors include one or more capacitive sensors attached to an exterior surface of the housing; a controller, residing inside the housing, configured to process the sensor data collected by the one or more sensors; an at least one printed circuit board, residing inside the housing, configured to hold the controller and the plurality of components of the device; and a display configured to convey information about a detected object to a user. 1. A device for detecting objects behind an opaque surface , comprising:a housing configured to hold a plurality of components of the device;one or more sensors, coupled to the housing, configured to collect sensor data of an object behind the opaque surface, wherein the one or more sensors include one or more capacitive sensors attached to an exterior surface of the housing;a controller, residing inside the housing, configured to process the sensor data collected by the one or more sensors;an at least one printed circuit board, residing inside the housing, configured to hold the controller and the plurality of components of the device; anda display configured to convey information about a detected object to a user.2. The device of claim 1 , whereinthe one or more capacitive sensors configured to measure a change in capacitance caused by the presence of the object behind the opaque surface, and wherein the one or more capacitive sensors are made of a conductive ink or a conductive tape.3. The device of claim 2 , whereinthe one or more capacitive sensors are configured to increase signal dynamic range of the sensor data by increasing areas of the one or more ...

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Номер записи: 32
01-01-2015 дата публикации

Adaptive time-lapse sub-surface electrical resistivity monitoring

Номер: US20150006081A1
Автор: Roelof Jan Versteeg
Принадлежит: Subsurface Insights LLC

A computer-based method includes receiving a first data set of electrical resistivity measurements from a plurality of electrodes arranged to measure electrical resistivity in or around a subsurface area of interest using a first set of acquisition parameters, processing, with one or more computer-based processors, the first data set of electrical resistivity measurements using a first set of processing parameters to produce a first multi-dimensional model of electrical resistivity in the subsurface area of interest; and modifying one or more of the acquisition parameters or one or more of the processing parameters.

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Номер записи: 33
07-01-2016 дата публикации

High Power Current Switch

Номер: US20160005556A1
Автор: Berglund Bo
Принадлежит: ADVANCED GEOSCIENCES, INC.

A high power switching circuit suitable for injection of high currents, typically several tens of Amperes, at high drive voltages of up to 5-10 kV, is provided using a combination of electromechanical and semiconductor switching elements that, while providing switchable polarity, substantially bypasses semiconductor switching element(s) during a substantial portion of current injection duty cycles. In this way, thermal heating of switching elements can be reduced/managed in a way that improves long term reliability of geophysical survey equipment. In addition, circuit protections can be provided to address backflow currents generated upon collapse of electromagnetic fields in inductive loads, such as is typical in geophysical surveys. 1. A current injection device for geophysical measurements , the current injection device comprising:an H-bridge circuit configured to, for at least some modes of operation, switchably control polarity of current injection into a geophysical load, the H-bridge comprising four (4) electromechanical switching elements coupled in series-connected pairs between first and second high voltage terminals;a semiconductor switching element coupled between the H-bridge circuit and the first high voltage terminal; anda fifth electromechanical switching element coupled, in parallel with the semiconductor switching element, between the H-bridge circuit and the first high voltage terminal, the fifth electromechanical switching element coupled to a control circuit that ensures that a state of the fifth electromechanical switching element is changed only when the semiconductor switching element is in a conductive state.2. The current injection device claim 1 , as recited in claim 1 ,wherein the semiconductor switching element is capable of passing a working load current of at least 15 A while conducting and capable of blocking a supply voltage at least 4 kV when not conducting.3. The current injection device claim 1 , as recited in claim 1 , further ...

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Номер записи: 34
10-01-2019 дата публикации

Pest monitoring system with conductive electrodes

Номер: US20190008131A1
Автор: Cheryl Ann LEICHTER, Greggory Keith STOREY, Gregory Kent THOMPSON, II Thomas S. RANCOUR, James W. Austin, Kenneth Scott BROWN, Timothy Robert SLOPER
Принадлежит: BASF Corp

A pest monitoring system generally includes a circuit, wherein the circuit is initially in a first impedance state that is configured to change to a second impedance state due to pest activity, wherein the second impedance state is lower than the first impedance state.

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Номер записи: 35
09-01-2020 дата публикации

WASH DOWN SENSOR FOR ELECTRONIC RODENT TRAPS AND METHOD OF PREVENTING FALSE TRIGGERING USING A WASH DOWN SENSOR

Номер: US20200008417A1
Автор: JR. Peter, KOZIAR
Принадлежит: Woodstream Corporation

An electronic rodent trap is provided that includes a microprocessor and a resistive sensor coupled to a high voltage killing circuit and to a wash down sensor. Upon detecting a resistance, the resistive sensor sends a detection signal to the microprocessor. The microprocessor activates the wash down sensor to determine whether the resistance is above a threshold value and/or shows variation characteristics consistent with the presence of a rodent and thus warranting activation of the killing circuit. Resistance that is below the threshold indicates the presence of water such that the killing circuit is not activated and false triggering of the electronic rodent trap is prevented. Animal traps and monitoring stations incorporating a wash down sensor for pest detection but without killing mechanisms are also provided. 1. A rodent monitoring or killing mechanism comprising:a housing body having a power source and a resistive sensor; anda wash down sensor coupled to the resistive sensor and configured to prevent false detection of a rodent when the rodent monitoring or killing mechanism is exposed to water.2. The rodent monitoring or killing mechanism as set forth in claim 1 , wherein the mechanism is an electronic rodent trap that includes a high voltage killing circuit coupled to the resistive sensor claim 1 , said circuit activating in response to detection of a resistance consistent with a rodent being in contact with the resistive sensor claim 1 , the resistive sensor including at least two plates that receive a high voltage pulse train when the killing circuit is activated.3. The rodent monitoring or killing mechanism as set forth in claim 1 , wherein the resistive sensor includes at least two plates and the wash down sensor includes a capacitor claim 1 , a low impedance load and a switching element that is activated upon detection of a resistance across the plates to close a path to ground through the low impedance load and discharge the capacitor claim 1 , a ...

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Номер записи: 36
27-01-2022 дата публикации

VEHICLE-BASED UTILITY LOCATING USING PRINCIPAL COMPONENTS

Номер: US20220026238A1
Автор: Crane-Solis Samantha, Olsson Mark S., Wisecaver Paul
Принадлежит:

The present disclosure is directed to vehicle-based systems for locating and mapping buried utility lines using principal components. Vehicle-based utility locating devices receive magnetic field signals emitted by utility lines and, with determined position data, implement principal component analysis to locate and map the utility lines. 1. A vehicle-based utility locating device for use with a vehicle , comprising:a positioning element including one or more GNSS antennas and associated receivers to receive positioning signals and determine position data of the vehicle-based utility locating device in a world frame; an antenna array to receive AC magnetic fields emitted from one or more buried utilities as the utility locating element is moved through an area of interest and provide antenna array output signals corresponding to the sensed AC magnetic fields;', 'a receiver element having a receiver input operatively coupled to the antenna array output to sample the antenna array output signals and provide, at a receiver output, receiver output signals corresponding to the sensed AC magnetic fields; and', 'a processing element, including one or more processors, operatively coupled to the receiver element receiver output to:', 'receive the receiver output signals and determine principal component values in a plurality of frequency bands; and', 'output data signals representing one or more field vectors corresponding to the eigenvector and eigenvalues of the principal component values so as to be correlated with the position data;, 'a utility locating element for determining the presence and location or absence of buried utility lines, includinga memory element comprising one or more non-transitory memories for storing output data values, signal data, position and mapping data, and instructions to implement a signal processing method for determining and mapping utility locations on a communicatively coupled processing element;a communication element comprising one or ...

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Номер записи: 37
08-01-2015 дата публикации

Apparatus and Method for Oil-Based Mud Formation Imaging Using Resonators

Номер: US20150012216A1
Автор: Bai Qingjie, Huang Tao, LIU CE, LIU YUE, Lu Yuzhou, Wang Zhong, Wu Suming, Zhao Qihui
Принадлежит:

An oil-based mud formation imaging tool for measuring electrical properties of surrounding formation includes at least one base plate, a first port and a second port deployed on the base plate, surface conductors covering both sides of the base plate, and inside conductors deployed in the first port and the second ports and with gaps from the edges of the first and second ports. The first port is fed with electromagnetic signals by a waveguide and a coupling is formed between the imaging tool and the surrounding formation accordingly. Resonance signals are induced at the second port to be used to compute corresponding formation resistivity and dielectric constant. A corresponding imaging method is also provided. 1. An imaging system for measuring electrical properties of surrounding formation comprising:at least one pad;at least one resonator deployed on said at least one pad;an electrical circuit coupled with said at least one resonator to process data derived on said at least one resonator;at least one arm to hold said at least one pad; anda pusher to extract or stretch said at least one arm.2. The imaging system according to wherein the electrical circuit is deployed in or on a mandrel.3. The imaging system according to wherein the electrical circuit contains a telemetry module to sample claim 1 , digitize claim 1 , or transmit data to ground.4. The imaging system according to wherein said at least one resonator can be a ring resonator.5. The imaging system according to wherein said at least one pad has a recession region to be put with said at least one resonator.6. An oil-based mud formation imaging tool for measuring electrical properties of surrounding formation comprising:a base plate;a first port and a second port deployed on the base plate;surface conductors covering both sides of the base plate; andinside conductors deployed in the first port and the second port and with gaps from the edges of the first and second ports;wherein the first port is fed with ...

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Номер записи: 38
14-01-2021 дата публикации

TRACKING POSITIONS OF PERSONNEL, VEHICLES, AND INANIMATE OBJECTS

Номер: US20210010828A1
Автор: Brune Guenter W., Chau Albert W., Mercer John E., Zeller Rudolf
Принадлежит:

A device rotates at least one static magnetic field about an axis, producing a rotating magnetic dipole field, and is movable in relation to the surface of the ground. The field is periodically sensed using a receiver to produce a receiver output responsive to the field. A positional relationship between the receiver and the device is monitored using the output. In one aspect, changing the positional relationship, by moving the device nearer to a boring tool which supports the receiver, causes an increase in accuracy of depth determination. In another aspect, determination of an actual overhead position of the boring tool, and its application, are described. Use of a plurality of measurements over at least one-half revolution of each magnet is disclosed. Establishing a surface radial direction toward a boring tool and resolution of multi-valued parameters is described. Calibration techniques, as well as a three transmitter configuration are also described.

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Номер записи: 39
14-01-2021 дата публикации

USER INTERFACES FOR UTILITY LOCATORS

Номер: US20210011187A1
Автор: Olsson Mar S.
Принадлежит:

The present disclosure relates to utility locator and user interfaces for use with such locators. Such utility locators may include multiple antennas and sensors for determining and displaying information associated with a buried or otherwise inaccessible utility. 1. A utility locator , comprising:a housing;an antenna array for sensing a buried utility;a memory;a processing element for generating information associated with the buried utility; anda visual display operatively coupled to the processing element and/or memory, wherein the visual display provides a user interface for visually communicating information by rendering the information on the display device, the displayed information including at least a representation of information relating to a position and depth of at least one sensed utility with respect to a first position of the locator, and a representation of information relating to a direction of current flow of the at least one sensed utility.2. A method for displaying information relating to one or more utilities on a user device , comprising:generating, on a display device, a visual representation of information regarding one or more sensed utilities, wherein the visual representation includes at least a representation of information relating to a position and depth of at least one sensed utility with respect to a first position of the locator, and a representation of information relating to a direction of current flow of the at least one sensed utility. This application is a continuation of and claims priority to co-pending U.S. Utility patent application Ser. No. 15/457,149, entitled USER INTERFACES FOR UTILITY LOCATORS, filed Mar. 13, 2017, which is a continuation of and claims priority to U.S. Utility patent application Ser. No. 14/022,067, now U.S. Pat. No. 9,599,740, entitled USER INTERFACES FOR UTILITY LOCATORS, filed Sep. 9, 2013, which claims priority under 35 U.S.C. § 119(e) to U.S. Provisional Patent Application Ser. No. 61/786,350, ...

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Номер записи: 40
14-01-2021 дата публикации

Magnetic Coupler for Inducing a Signal on a Utility Line

Номер: US20210011188A1
Автор: Brian K. Bailey, Richard William Fling
Принадлежит: Charles Machine Works Inc

A magnetic coupler for inducing a signal on a buried utility wire. The coupler has two elongated jaws, each extending along a separate longitudinal axis. The jaws are attached at a hinge. The jaws may be placed about an exposed portion of the utility wire. A signal generate provides a signal which is emitted from a transmitter in each of the jaws. The signals emitted from each jaw are antiphase to one another, such that they are additive to a utility wire disposed between the jaws but out of phase with respect to any utility not between the jaws. The signal is thus induced on the utility wire and can be detected as emitted from its below ground length by a conventional locator.

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Номер записи: 41
14-01-2021 дата публикации

Pad Alignment With A Multi-Frequency-Band And Multi-Window Semblance Processing

Номер: US20210011189A1
Автор: Ewe Wei-Bin, Wang Ruijia
Принадлежит: Halliburton Energy Services, Inc.

A method and system for pad alignment may comprise disposing a downhole tool into a borehole, taking a measurement with the electrode with at least one operating frequency, correcting the measurement to account for local formation dip, constructing a window with a predetermined size H, identifying a number of adaptive filters to be utilized, extracting one or more frequency components from the measurement with the adaptive filters, identifying a semblance value of a reference dataset and a target dataset, assembling the semblance values for the reference dataset and the target dataset, identifying the semblance values of the reference dataset and target datasets over the range of relative pad shifts, identifying a pad shift, and forming one or more images of the pad shirt or the semblance of the reference dataset and target data set. The system may comprise a mandrel, one or more pads, and electrodes. 1. A method for pad alignment comprising: a mandrel, wherein the mandrel is a structural support for the downhole tool;', 'one or more pads, wherein the one or more pads are connected to the mandrel; and', 'one or more electrodes, wherein the one or more electrodes are disposed on each of the one or more pads; and, 'disposing a downhole tool into a borehole, wherein the downhole tool comprisestaking a measurement with the one or more electrodes with at least one operating frequency;correcting the measurement to account for local formation dip;constructing a window with a predetermined size H;identifying one or more adaptive filters to be utilized;extracting one or more frequency components from the measurement with the one or more adaptive filters;identifying a semblance value of a reference dataset and a target dataset;assembling the semblance value for the reference dataset and the target dataset;identifying the semblance value of the reference dataset and target dataset over a range of relative pad shifts;identifying a pad shift; andforming one or more images of the ...

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Номер записи: 42
10-01-2019 дата публикации

MONITORING HYDROCARBON RESERVOIRS USING INDUCED POLARIZATION EFFECT

Номер: US20190011593A1
Автор: Burtman Vladimir, Marsala Alberto F., Zhdanov Michael S.
Принадлежит: Saudi Arabian Oil Company

Some examples of monitoring hydrocarbon reservoirs using induced polarization effect includes inducing polarization in a subterranean zone using an induced polarization fluid. The subterranean zone includes first formations and second formations. A quantity of hydrocarbons in the first formations is greater than quantity of hydrocarbons in the second formations. The induced polarization data is obtained from the subterranean zone. A portion of the induced polarization data from the first formations is different from a portion of the induced polarization data from the second formations. The second formations in the subterranean zone are identified based on the obtained induced polarization data 1. A system comprising: obtaining induced polarization data from a subterranean zone, the subterranean zone comprising first formations and second formations, a quantity of hydrocarbons in the first formations greater than a quantity of hydrocarbons in the second formations, the induced polarization data induced in the subterranean zone using an induced polarization fluid, a portion of the induced polarization data from the first formations being different from a portion of the induced polarization data from the second formations;', 'identifying the second formations in the subterranean zone based on the obtained induced polarization data by determining volume distribution of electrical resistivity and chargeability in the subterranean zone from the induced polarization data;', 'monitoring changes to the electrical resistivity and chargeability in the subterranean zone, wherein changes to electrical resistivity and chargeability in the first formations are different from changes to electrical resistivity and chargeability in the second formations that have absorbed the induced polarization; and', 'correlating the changes to the electrical resistivity and chargeability to rock formations in the subterranean zone, wherein correlating comprises differentiating between first ...

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Номер записи: 43
09-01-2020 дата публикации

Magneto-inductive transmitter with electrically modulated reluctance

Номер: US20200012006A1
Автор: John H. Booske, Nader Behdad, Nathan Daniel Strachen
Принадлежит: WISCONSIN ALUMNI RESEARCH FOUNDATION

A magneto-inductive transmit antenna is provided that includes a shield formed of a magnetic material, a magnetic field source mounted on a first side of the shield, and a coil wrapped around the shield to define a number of turns. The coil is configured to conduct a current therethrough. The magnetic material is configured to exhibit a change in permeability based on the current conducted through the coil when the current is conducted through the coil. The change in permeability is configured to modulate a magnetic field of the magnetic field source. The magnetic field is modulated relative to a second side of the shield opposite the first side when the permeability is changed.

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Номер записи: 44
11-01-2018 дата публикации

SECURITY SYSTEM AND METHOD OF DETECTING CONTRABAND ITEMS

Номер: US20180012465A1
Автор: Goodyear Simon Wray, Keene Mark Nicholas
Принадлежит:

A security screening apparatus for use in detecting ferromagnetic objects comprises a detector apparatus which comprises a housing that supports at least one magnetic sensor arranged to produce a signal indicative of an ambient magnetic field or gradient over a zone of sensitivity which extends away from the housing, the size of the zone being large enough to contain the whole body of the person, and a signal processing circuit which receives as an input the signal from the magnetic sensor and which, in response to a change in the signal produces an alert signal. A beacon that comprises a light source is able to emit at least two visually distinct colours of light, and a control means controls the light source such that in a first condition in the absence of the alert signal the beacon emits a first colour light and in a second condition corresponding to the presence of the alert signal the beacon emits a second, different, colour of light. The light source is arranged such that the position and/or size and/or shape of the illuminated area of the light source in the first condition is different from the position and/or size and or shape of the illuminated area of the light source in the second condition. 111-. (canceled)12. A security screening system comprising:a detector apparatus which comprises at least one magnetic sensor arranged to produce a signal indicative of an ambient magnetic field or gradient over a zone of sensitivity around the sensor, the zone being large enough to contain the whole body of the person, and a signal processing circuit which receives as an input the signal from the magnetic sensor and which, in response to a change in the signal produces an alert signal;characterised in that the detector apparatus includes a transmitter that transmits a non-visible and non-audible warning signal when the alert signal is produced, and further comprising:a remote warning device that is physically separate from the detector apparatus and comprises a ...

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Номер записи: 45
15-01-2015 дата публикации

Airborne electromagnetic system with rigid loop structure comprised of lightweight modular non-rotational frames

Номер: US20150015263A1
Автор: John Philip Miles, William Wallace Marr
Принадлежит: CGG DATA SERVICES AG

The present invention provides a light weight, modular and rigid structure for supporting the transmitter loop of an airborne electromagnetic system. The airborne electromagnetic surveying system comprises a tow assembly connected to an aircraft, the tow assembly including a transmitter section comprising a transmitter coil for generating a primary electromagnetic field that induces a secondary electromagnetic field. The transmitter coil is supported by a generally rigid transmitter frame. The transmitter frame comprises a plurality of frame sections assembled in a way such that the generally rigid transmitter frame substantially retains a rigid shape during operation. The system may also include a receiver section located above the generally rigid transmitter frame in between the aircraft and the generally rigid transmitter frame for detecting the secondary electromagnetic field.

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Номер записи: 46
21-01-2016 дата публикации

SMART CONNECTION INTERFACE

Номер: US20160015888A1
Автор: ALDERETE, BAZARGAN Afshin, Jr. Juan M., Pananen Jacob E., Tieck R. Marie
Принадлежит:

A method and apparatus for a connection interface between a reservoir or syringe, infusion set tubing, and an infusion pump is provided. The reservoir, a base and a cap are connected to form an integrated unit that is capable of being inserted and secured in an infusion pump housing. The cap and the infusion pump are each provided with at least one sensor or at least one detectable feature, arranged to interact with at least one corresponding detectable feature or sensor on the other of the cap and infusion pump device, to detect one or more of the presence, position or other characteristic of the cap when the cap is aligned or coupled with the infusion pump housing. The detectable feature and sensor may be magnetic, RF, mechanical, optical or any combination. 136.-. (canceled)37. An infusion pump system , comprising:an infusion pump device having a reservoir receptacle to receive a reservoir containing infusion media and to selectively dispense the infusion media from the reservoir when the reservoir is received within the reservoir receptacle;the reservoir for containing the infusion media;at least one sensor element held by the infusion pump device;a connector interface to connect the reservoir with the infusion pump device, the connector interface comprising a cap to connect to the reservoir to form a reservoir/cap unit; andat least one magnetic detectable feature arranged on the cap for detection by the at least one sensor element on the infusion pump device when the reservoir of the reservoir/cap unit is received in the reservoir receptacle of the infusion pump device,wherein the at least one magnetic detectable feature comprises a magnet that is attached to a housing of the cap.38. An infusion pump system as recited in claim 37 , wherein the at least one magnetic detectable feature has at least one detectable parameter that is associated with one or more characteristics of a cannula or a tubing of an infusion set associated with the connector interface.39. An ...

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Номер записи: 47
03-02-2022 дата публикации

FLUID COVERAGE SENSING SYSTEM AND METHOD

Номер: US20220034767A1
Автор: III Raymond, Kozikowski, Rygelski Marian Mikaela, Thurman Matthew
Принадлежит:

A system for applying a fluid to a substrate bearing a sample for analysis has an array of sensor plates positioned to sense the presence of fluid in contact with respective areas of the substrate. In a particular embodiment, fluid presence in different areas of the substrate is sensed by the effect of the fluid and its identity on the impedances of capacitors formed between sensor plates within the array. In a more particular embodiment, by polling the sensor array continually while fluid is applied to the substrate determine a coverage map, a fluid dispensing mechanism can be controlled to efficiently cover the entire substrate with fluid a minimal amount of fluid, thereby reducing waste. 1. A method for identifying a liquid dispensed to a surface , comprising: (a) positioning a sensor array in the vicinity of a substrate , the substrate comprising the surface to which the liquid is dispensed , the sensor comprising an array of capacitor plates; (b) measuring an electrical property of at least one capacitor plate responsive to alternating currents at one or more of a plurality of different frequencies; (c) identifying the liquid dispensed on the surface of the substrate that is present between the at least one pair of capacitor plates based on the measured electrical property at the one or more of the plurality of different frequencies.2. The method of claim 1 , wherein identifying comprises identifying the liquid based on a logistic regression.3. The method of claim 1 , wherein identifying comprises identifying the liquid based on a trained neural network.4. The method of claim 1 , wherein measuring comprises measuring the impedance of the at least one capacitor plate responsive to AC current with a voltage of 1 to 10 volts at each of the plurality of different frequencies.5. The method of claim 1 , wherein the plurality of different frequencies comprises a plurality of different frequencies over a range from one to ten thousand kilohertz.6. The method of claim 1 ...

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Номер записи: 48
03-02-2022 дата публикации

THREE-DIMENSIONAL RESISTIVITY PROBE FOR IN-SITU MONITORING

Номер: US20220035061A1
Автор: Dou Yanguang, Fu Tengfei, Guo Lei, Liu Wenquan, Xu Xingyong, Yu Ying
Принадлежит:

The invention provides a three-dimensional resistivity probe for in-situ monitoring comprises: a probe rod body inside which one or more subordinate controllers are provided; a control cabin inside which a main controller is provided disposed at the top of the probe rod body; and a cone tip provided at the bottom of the probe rod body; wherein the probe rod body comprising: a plurality of resistivity sensor modules, wherein each resistivity sensor module including a plurality of insulating rings, each insulating ring having a protruded part at a top end and a groove fitting into at a bottom end, three or more point-electrode grooves are formed at the top end of each insulating ring and two through holes allowing two positioning rods to insert into for assembly are opened thereon and the outer end of each point-electrode groove extends to an outer circumference of each insulating ring. The invention could establish a three-dimensional resistivity dynamic monitoring system, through the three-dimensional resistivity dynamic monitoring system, the transport law and mechanism of water and salt transport, caused by different disaster chain origins, in a special soil body can be revealed, and the water and salt transport spatial distribution dynamic change process in a coastal zone is subjected to high spatial resolution and high precision in-situ long-term monitoring. 1. A three-dimensional resistivity probe for in-situ monitoring comprises:a probe rod body inside which one or more subordinate controllers are provided;a control cabin inside which a main controller is provided disposed at the top of the probe rod body; anda cone tip provided at the bottom of the probe rod body; a plurality of resistivity sensor modules, wherein each resistivity sensor module including a plurality of insulating rings, each insulating ring having a protruded part at a top end and a groove fitting into at a bottom end, three or more point-electrode grooves are formed at the top end of each ...

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Номер записи: 49
19-01-2017 дата публикации

UTILITY LOCATOR DEVICES, SYSTEMS, AND METHODS WITH SATELLITE AND MAGNETIC FIELD SONDE ANTENNA SYSTEMS

Номер: US20170017010A1
Автор: Bench Stephanie M., Casares Jesse O., Cox David A., Merewether Ray, Olsson Mark S., Soukup Jan, Taylor Justin W.
Принадлежит:

A transmitter system for providing current to a utility when performing a locate operation is disclosed. The transmitter system may include a tray apparatus, a transmitter module for generating an output current for provision to the utility so as to generate a magnetic field for detection by a utility locator disposed on or in the tray apparatus, and a sonde antenna node, a satellite antenna node, or a combined satellite navigation and sonde antenna node. 1. A transmitter system for providing current to a utility when performing a locate operation , comprising:a tray apparatus;a transmitter module for generating an output current for provision to the utility so as to generate a magnetic field for detection by a utility locator disposed on or in the tray apparatus;a magnetic field sonde antenna transmit node; anda satellite location system antenna node oriented in a predefined position relative to the magnetic field sonde transmit antenna node; anda satellite location system receiver coupled to the satellite location system antenna node for generating location data corresponding to a location of the transmitter system.2. The system of wherein the satellite location system node and the magnetic field sonde transmit antenna node are arranged in a combined antenna node.3. The system of claim 1 , wherein the satellite location system antenna node comprises a GPS antenna.4. The system of claim 2 , wherein the combined antenna node includes a GPS antenna node and the magnetic field sonde transmit antenna node includes a coil claim 2 , and wherein the GPS antenna phase center and the sonde outer coil centroid share a substantially common point in space.5. The transmitter system of claim 1 , wherein one or both of the antenna nodes includes a mast removably coupled to the tray apparatus.6. The transmitter system of claim 1 , further combining a transmitter module for providing the location data to a utility locator.7. A satellite positioning and sonde transmit system for ...

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Номер записи: 50
18-01-2018 дата публикации

Contactless Sensor

Номер: US20180017695A1
Автор: Orlik Philip, Teo Koon Hoo, Wang Bingnan
Принадлежит: Mitsubishi Electric Research Laboratories, Inc.

A sensor including a set of coils. The set of coils include a first coil and a second coil, wherein the first coil upon receiving energy, generates an electromagnetic near-field, such that the electromagnetic near-field provides at least a portion of the energy to the second coil through inductive coupling, inducing a current to pass through the set of coils. Further, a detector for measuring a voltage across at least one of the first coil or the second coil, wherein the detector includes a voltmeter. Finally, a processor for detecting a presence of a target structure in proximity to the set of coils upon detecting a change in a value of the voltage, wherein the target structure is an electromagnetic structure moving at a distance from the set of coils. 1. A sensor , comprising:a set of coils, the set of coils include a first coil and a second coil, wherein the first coil upon receiving energy, generates an electromagnetic near-field, such that the electromagnetic near-field provides at least a portion of the energy to the second coil through inductive coupling, inducing a current to pass through the set of coils;a detector for measuring a voltage across at least one of the first coil or the second coil; anda processor for detecting a presence of a target structure in proximity to the set of coils upon detecting a change in a value of the voltage, wherein the target structure is an electromagnetic structure moving at a distance from the set of coils.2. The sensor of claim 1 , wherein each coil of the set of coils are identical claim 1 , wherein the target structure includes a target coil identical to each coil in the set of coils.3. The sensor of claim 1 , further comprising:a power source for supplying the energy to the first coil via a power signal having a resonance frequency, wherein each coil of the set of coils is an electromagnetic structure with a resonant frequency.4. The sensor of claim 1 , wherein the second coil has a resonance frequency approximate a ...

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Номер записи: 51
18-01-2018 дата публикации

DETECTION SENSOR

Номер: US20180017696A1
Автор: Sato Yasushi
Принадлежит:

Provided is a detection circuit that has a first inductor connected to two opened input ends and detects an external signal having a waveform with a gradient at each input end. The detection sensor further includes an output circuit that has a second inductor magnetically coupled with the first inductor as a primary side. In the output circuit, a third inductor constituting a delay circuit having one end connected to an intermediate tap of the second inductor is connected. Diodes are respectively connected to terminals of the second inductor in a forward direction. Other terminals of the diodes are connected to another terminal of the third inductor via elements each having an impedance characteristic. The output circuit outputs a detection signal detected at the input ends, from the other terminal(s) of at least one of the diodes. 1. A detection sensor comprising:a detection circuit that has a first inductor connected to two opened input ends and detects an external signal having a waveform with a gradient at each input end; and a third inductor constituting a delay circuit having one end connected to an intermediate tap of the second inductor is connected,', 'diodes are respectively connected to terminals of the second inductor in a forward direction,', 'other terminals of the diodes are connected to another terminal of the third inductor via elements each having an impedance characteristic, and', 'the output circuit outputs a detection signal detected at the input ends, from the other terminal(s) of at least one of the diodes., 'an output circuit that has a second inductor magnetically coupled with the first inductor as a primary side, wherein'}2. The detection sensor according to claim 1 , wherein each element having the impedance characteristic constitutes a parallel circuit of a capacitor and a resistor.3. The detection sensor according to claim 1 , wherein at least a capacitance component as a low-pass filter is connected between the terminals that output the ...

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Номер записи: 52
16-01-2020 дата публикации

TRACKING POSITIONS OF PERSONNEL, VEHICLES, AND INANIMATE OBJECTS

Номер: US20200018621A1
Автор: Brune Guenter W., Chau Albert W., Mercer John E., Zeller Rudolf
Принадлежит:

A device rotates at least one static magnetic field about an axis, producing a rotating magnetic dipole field, and is movable in relation to the surface of the ground. The field is periodically sensed using a receiver to produce a receiver output responsive to the field. A positional relationship between the receiver and the device is monitored using the output. In one aspect, changing the positional relationship, by moving the device nearer to a boring tool which supports the receiver, causes an increase in accuracy of depth determination. In another aspect, determination of an actual overhead position of the boring tool, and its application, are described. Use of a plurality of measurements over at least one-half revolution of each magnet is disclosed. Establishing a surface radial direction toward a boring tool and resolution of multi-valued parameters is described. Calibration techniques, as well as a three transmitter configuration are also described. 1. A method , comprising:configuring a transmitter for emanating a locating signal such that the transmitter and thereby the locating signal can be in a tilted orientation with respect to a vertical direction and for measuring the tilted orientation to produce a tilt signal;sensing said locating signal using a receiver that is underground at a receiving position to produce one or more flux measurements responsive to the locating signal in said tilted orientation;using the flux measurements and the tilt signal, determining the receiving position of the receiver relative to the transmitter in a level coordinate system in relation to the transmitter.2. The method of including configuring said transmitter as a portable locator for movement by an operator in relation to a surface of the ground.3. The method of including configuring said transmitter as a transmitter station for transmitting said locating signal from a stationary position on the surface of the ground while re-determining said receiving position ...

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Номер записи: 53
21-01-2021 дата публикации

METHOD FOR SECURING POWER IN REMOTE LOCATIONS AND APPARATUS THEREFOR

Номер: US20210018644A1
Автор: ABDELHADI Abderrahim
Принадлежит: Crone Geophysics & Exploration Ltd.

An apparatus with a plurality of power supplies, a generator, a transmitter and a wire loop to the transmitter for mineral exploration and a plurality of single-phase portable AC generators, wherein the plurality of power supplies and plurality of generators are coupled to receive power therefrom as well as the circuitry couples the power supplies to one another and in use with the transmitter. 1. Apparatus for use with a load and one or more supplies of power , the apparatus comprising:a power supply for each of said one or more supplies, the power supply being coupled, in use, to said each supply to receive power therefrom; andcircuitry coupling the power supplies to one another and, in use, to the load.2. Apparatus according to claim 1 , wherein each power supply is adapted to receive AC power from a generator.3. Apparatus according to claim 2 , wherein each power supply is adapted to receive AC power and produce DC power.4. Apparatus according to claim 3 , wherein each power supply is adapted to receive single phase AC.5. Apparatus according to claim 4 , wherein each power supply is about a 5 kW power supply.6. Apparatus according claim 5 , wherein each power supply is rated for 170 VDC and 60 A DC.7. Use of the apparatus according to any one of to with a transmitter.8. Use according to wherein the transmitter is about a 15 kW transmitter claim 7 , producing about 60 A and 500 VDC maximum.9. Use according to or claim 7 , wherein the transmitter generates various current waveforms in a wire loop for mineral exploration.10. Use according to claim 9 , wherein the loop is a TDEM loop.11. Use according to any one of to claim 9 , wherein a generator is provided for claim 9 , and defines each claim 9 , supply of power.13. Apparatus according to claim 12 , wherein there are three power supplies.14. Apparatus according to claim 12 , wherein there are four power supplies.15. Apparatus according to claim 12 , wherein there are five power supplies. The invention relates to ...

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Номер записи: 54
25-01-2018 дата публикации

OCCUPANT DETECTION AND CLASSIFICATION SYSTEM

Номер: US20180022231A1
Автор: Bennett Jeffrey S., DALIMONTE Daniel A., SCHULTZ Joseph A.
Принадлежит: TK Holdings Inc.

A system for detecting an occupant in a vehicle seat that includes a sensing electrode located in a seat bottom of a vehicle seat. The system also includes a shield electrode located in the vehicle seat below the sensing electrode. A sensing circuit is operatively coupled to the sensing electrode and the shield electrode. A controller is operatively coupled to the sensing circuit, wherein the controller operates to configure the sensing circuit to apply current to the shield and sensing electrodes. The controller is configured to detect the presence of an object in the seat by comparing a measure of the quadrature component of the sensing current to a threshold wherein the measure is adjusted by an offset value that varies based on a value of a non-volatile counter. 1. A system for classifying an occupant of a vehicle seat comprising:a sensing electrode located in the seat;a sensing circuit configured to provide a current to the sensing electrode;wherein the sensing circuit is configured to measure a quadrature component of the current provided to the sensing electrode;a controller that is configured to detect and classify the occupant by comparing a measure of the quadrature component of the current provided to the sensing electrode to a threshold; andwherein the measure is adjusted by an offset value that varies based on a value of a non-volatile counter.2. The system of claim 1 , wherein the value of the counter is based on the number of times that an occupant is detected to be sitting in the vehicle seat.3. The system of claim 2 , wherein the value of the counter is incremented upward if the controller determines that the seat is occupied and the vehicle key is turned to the ON position.4. The system of claim 2 , wherein the counter is incremented upward if the controller determines that a belted child seat is located in the seat and the vehicle key is turned to the ON position.5. The system of claim 2 , wherein the counter is incremented upward if the ...

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Номер записи: 55
28-01-2016 дата публикации

METHOD AND APPARATUS FOR MEASURING THE ELECTRICAL IMPEDANCE PROPERTIES OF GEOLOGICAL FORMATIONS USING MULTIPLE SIMULTANEOUS CURRENT SOURCES

Номер: US20160025885A1
Автор: LaBrecque Douglas John
Принадлежит:

A system for measuring geological data is disclosed. The system includes several transceivers distributed over a geographical area. Each of the transceivers has at least one transmitter and at least one receiver. The transceivers are in communication with each other. The receivers are adapted to measure at least one electrical signal. The transmitters are adapted to inject an electrical current into a subsurface area. The transmitters operate simultaneously to inject the electrical current into the subsurface area simultaneously from a number of locations. 1. A method of obtaining electrical data from a geological formation , comprising:obtaining a common time reference at each of plural geological data transceivers;transmitting an electrical current into the geological formation from each of the plural geological data transceivers simultaneously based upon the common time reference at each transceiver, the electrical current from each of the plural geological data transceivers being of the same frequency and waveform; andsensing one or more electrical signals as electrical data from the geological formation.2. The method of in which the electrical current from each of the plural geological data transceivers is of a different amplitude.3. The method of in which the electrical current from each of the plural geological data transceivers is of a different phase.4. The method of in which obtaining a common time reference at each of the plural geological data transceivers includes receiving the common time reference at each geological data transceiver from a global positioning system.5. The method of in which sensing one or more electrical signals as electrical data from the geological formation includes sensing plural electrical signals and the method further includes generating a weighted sum of the plural electrical signals.6. The method of in which sensing the one or more electrical signals as electrical data from the geological formation is performed by one or more ...

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Номер записи: 56
22-01-2015 дата публикации

Method for Locating Casing Downhole Using Offset XY Magnetometers

Номер: US20150025805A1
Автор: Blanz Martin, HANAK FRANCIS CHAD
Принадлежит: BAKER HUGHES INCORPORATED

An apparatus, method and computer-readable medium for locating a joint of a casing disposed in a borehole are disclosed. The apparatus includes a sensor oriented in a plane orthogonal to a longitudinal axis of the casing. The sensor measures a magnetic field induced in the casing by the earth's magnetic field. A tool conveys the sensor through the casing along a path that is radially offset from a longitudinal axis of the casing. Transverse magnetic field measurements are obtained by the sensor at a plurality of depths along the casing. A change in the transverse measurements is identified and used to determine the location of the casing joint. 1. A method of locating a joint of a casing disposed in a borehole , comprising:conveying a sensor through the casing along a path radially offset from a longitudinal axis of the casing, wherein the sensor is oriented in a plane orthogonal to the longitudinal axis of the casing;detecting by the sensor a change in a transverse component of an earth-induced magnetic field in the casing as the sensor is conveyed along the path; andlocating the casing joint using the detected change in the transverse component.2. The method of claim 1 , wherein the offset path is near an inner surface of the casing.3. The method of claim 1 , wherein the sensor includes two orthogonal magnetometers oriented in a plane orthogonal to the longitudinal axis of the casing.4. The method of claim 1 , wherein the transverse component of the earth-induced magnetic field is a radial component.5. The method of claim 1 , further comprising detecting a signature of the transverse component of the earth-induced magnetic field to determine the location of the casing joint.6. The method of claim 6 , wherein the signature of the earth-induced magnetic field includes a radially positive magnetic lobe and a radially negative magnetic lobe at the casing joint.7. The method of claim 1 , further comprising using a k-means clustering of edge-filtered magnetic ...

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Номер записи: 57
23-01-2020 дата публикации

Electric field sensing devices and systems and method of making the same

Номер: US20200025966A1
Автор: Derek Karl Schwanz, Shriram Ramanathan, Zhen Zhang
Принадлежит: PURDUE RESEARCH FOUNDATION

An electric field sensing device. The device includes a substrate, a sensing medium capable of experiencing a change in its electrical resistivity in response to an electric field, and electrodes for use in measuring the change. A method of making an electric field sensing device. The method includes depositing on a substrate a sensing medium capable of experiencing a change in its electrical resistivity in response to an electric field emitted by an object; and placing electrodes for use in measuring the change. An electric field sensing system. The system contains a plurality electric field sensing devices, an arrangement of the plurality sensing devices in a way to detect spatial variation of electric field emitted by objects in an environment; a computer system capable of monitoring the sensing devices, and detecting and comparing differences between the electrical fields sensed by individual devices.

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Номер записи: 58
02-02-2017 дата публикации

Multi-Tool Assembly

Номер: US20170028572A1
Автор: Raymond Daniel J.
Принадлежит:

The multi-tool assembly includes a housing which is made of two pieces that are joined together with a screw. The housing extends between opposite longitudinal ends and has opposite lateral sides which extend between the longitudinal ends. The assembly also includes a blade which extends out of one of the longitudinal ends of the housing. At least one spirit level is attached with the housing and is oriented either perpendicular or parallel to at least one of the lateral sides. The blade allows a person to use the multi-tool assembly as a utility knife, and the orientation of the lateral side in parallel with or perpendicular to the spirit level allows a user to use the multi-tool assembly as a torpedo level. 1. A multi-tool assembly , comprising:a housing made of two pieces that are joined together with a screw, said housing extending between opposite longitudinal ends, and said housing having opposite lateral sides which extend between said longitudinal ends;a blade extending out of one of said longitudinal ends of said housing;at least one spirit level attached with said housing and oriented either perpendicular or parallel to at least one of said lateral sides.2. The multi-tool assembly as set forth in further including a magnet.3. The multi-tool assembly as set forth in wherein said magnet is incorporated into a head of said screw;4. The multi-tool assembly as set forth in further including a laser head oriented perpendicularly relative to said at least one spirit level.5. The multi-tool assembly as set forth in wherein said laser head is configured to project a spread laser beam.6. The multi-tool assembly as set forth in wherein said laser head is disposed adjacent one of said longitudinal ends of said housing.7. The multi-tool assembly as set forth in wherein said at least one spirit level is a pair of spirit levels oriented perpendicularly to one another.8. The multi-tool assembly as set forth in wherein said lateral sides are in parallel with one another ...

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Номер записи: 59
02-02-2017 дата публикации

SEAL BASED OBJECT DETECTION FOR VEHICLE DOOR ASSIST SYSTEM

Номер: US20170030127A1
Автор: Azzouz Michael M., Elie Larry, Heath Gerald J., Jaranson John Wayne, Novak Robert F., Potter Timothy J., Skoures Evangelos P., Wallace Jeff A.
Принадлежит:

A door assist system for a vehicle is disclosed. The system comprises an actuator configured to control a position of the door about a hinge assembly. An interference sensor forms a portion of a door opening seal and is configured to detect an obstruction in a plurality of detection regions. The system further comprises a controller configured to control the actuator in response to a detection signal from the interference sensor. 1. A door assist system for a vehicle comprising:an actuator configured to control a position of the door about a hinge assembly;an interference sensor forming a portion of a door opening seal configured to detect an obstruction in a plurality of detection regions; anda controller configured to control the actuator in response to a detection signal from the interference sensor.2. The door assist system according to claim 1 , wherein the door opening seal corresponds to at least one of a of at least one of a perimeter door seal and a perimeter door opening seal.3. The door assist system according to claim 1 , wherein the controller is configured to control the actuator to adjust the position of the door between an open position and a closed position.4. The door assist system according to claim 1 , wherein the controller is configured to identify a location of the obstruction based on a radial extent of the obstruction from the hinge assembly.5. The door assist system according to claim 4 , wherein the interference sensor corresponds to a plurality of proximity sensors distributed along the door opening seal.6. The door assist system according to claim 5 , wherein the controller is configured to identify the location of the obstruction based on a position of at least one sensor of the plurality of proximity sensors relative to the hinge assembly.7. The door assist system according to claim 6 , wherein the controller is configured to detect the obstruction at a plurality of thresholds based on the location of obstruction relative to the hinge ...

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Номер записи: 60
02-02-2017 дата публикации

TRAMP METAL DETECTION

Номер: US20170031049A1
Автор: Daugela Darcy
Принадлежит:

A system for detecting and discriminating a metal object in a bulk non-metallic material includes at least one triple-axis magnetometer adapted to detect a change of a magnetic field and output a signal including a detection signal representative of a metal object and a signal processing system adapted to detect the detection signal. The bulk non-metallic may be continuously moving through a detection volume, or may be placed in and removed from the detection volume as a batch. 1. A system for detecting and discriminating a metal object contained in a bulk of non-metallic material , comprising:(a) at least one triple-axis magnetometer disposed adjacent a detection volume and adapted to detect a change in strength and/or direction of a magnetic field and output a signal; and(b) a signal processing system adapted to detect a signal representative of a metal object by removing noise components of the output signal.2. The system of comprising a plurality of magnetometers claim 1 , wherein the signal processing system uses the output signals of each of the magnetometers.3. The system of wherein the bulk of non-metallic material is a moving stream through the detection volume.4. The system of wherein the moving stream is being conveyed on a conveyor belt or sliding on an apron feeder.5. The system of wherein the plurality of magnetometers are disposed adjacent to a detection volume which comprises a metal containment wall.6. The system of wherein the metal containment comprise a holding tank claim 5 , can claim 5 , barrel claim 5 , or truck box.7. The system of further comprising a noise sensor claim 1 , positioned in close proximity to a source of signal noise such as a walkway or rotating metal components claim 1 , which outputs a noise signal claim 1 , wherein the signal processing system subtracts the noise signal from the magnetometer output signal.8. The system of wherein the noise sensor is a triple-axis magnetometer or a vibration sensor.9. The system of wherein a ...

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Номер записи: 61
02-02-2017 дата публикации

Electromagnetic System for Exploring the Seabed

Номер: US20170031052A1
Автор: "Deu Jean-Francois", Gaspari Fabien, Tarits Pascal
Принадлежит:

An electromagnetic system for exploring the seabed in a marine environment includes a current injection module with two electrodes spaced apart from one another, said injection electrodes being capable of injecting a current at a predetermined voltage into the marine environment close to the seabed, said injection electrodes having a contact surface with the marine environment. The system includes a data acquisition module with at least two measuring sensors for measuring electrical or magnetic data at least two points of the marine environment close to the seabed, and a power supply module for supplying power to the current injection module. Each electrode includes one or more separate conductive elements that are electrically connected to each other and arranged in such a way as to form a conductive network or a multilayer conductive assembly having a large contact surface with the marine environment. 1. An electromagnetic system for exploring a seabed located in a marine environment comprising:a current injection module that includes two injection electrodes separated from one another and configured to inject a current at a predetermined voltage into the marine environment close to the seabed and having a contact surface with the marine environment,a data acquisition module that includes at least two measuring sensors for measuring electrical or magnetic data at least two points of the marine environment close to the seabed, wherein the data results from the conducting or from the inducing of the current into the seabed,a supply module to supply power to the current injection module,wherein each injection electrode includes one or more separate conductive elements electrically connected to each other and arranged in such a way as to form a conductive network or a multilayer conductive assembly having a large contact surface with the marine environment.2. The system according to claim 1 , wherein the contact surface of each injection electrode is equal to or ...

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Номер записи: 62
05-02-2015 дата публикации

SENSOR COMPRISING A MAGNET AND A HALL-EFFECT PROBE

Номер: US20150035527A1
Автор: Guibet Vincent
Принадлежит:

The invention relates to a sensor () comprising: a Hall-effect probe () fastened only by way of its connection pins () and comprising a sensing element (); a magnet () having a cavity () having a base (), and in which cavity the sensing element () is housed; and a cylindrical hole () having an axis () and which extends from said base () toward the interior of the magnet (), the Hall-effect probe being capable of moving inside the cavity (). 1. A sensor , comprising:a Hall-effect probe comprising a sensitive element; anda magnet having a recess having a bottom in which the sensitive element is housed, and a cylindrical hole with an axis which runs from said bottom to the inside of the magnet,the Hall-effect probe being liable to move inside the recess.2. The sensor as claimed in claim 1 , the cylindrical hole having a circular transverse cross section.3. The sensor as claimed in claim 1 , the bottom of the recess defining a transverse plane perpendicular to the axis of the cylindrical hole.4. The sensor as claimed in claim 3 , the transverse plane forming an end stop for the movement of the Hall-effect probe along the axis of the cylindrical hole.5. The sensor as claimed in claim 1 , the movement of the probe taking place exclusively outside the hole.6. The sensor as claimed in claim 1 , the cylindrical hole being blind.7. The sensor as claimed in claim 1 , the dimensions of the magnet being such that during the movements of the Hall-effect probe claim 1 , the value of the magnetic induction perceived by the sensitive element remains substantially constant.8. The sensor as claimed in claim 1 , the recess having a parallelepipedal shape.9. The sensor as claimed in claim 1 , the magnet and the Hall-effect probe being not rigidly coupled.1034. The sensor as claimed in claim 1 , the Hall-effect probe being able to move in a direction parallel with the axis () of the hole and/or in a plane perpendicular to said axis.11. The sensor as claimed in claim 10 , the Hall-effect ...

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Номер записи: 63
17-02-2022 дата публикации

Device and Network Based Communications for Input/Output (I/O) Operative Touch Sensor Device (TSD)

Номер: US20220050552A1
Автор: Derichs Kevin Joseph, Gray Patrick Troy, JR. Richard Stuart, Markison Timothy W., Morrison Gerald Dale, Ph.D. Shayne X., Seger, Short, Van Ostrand Daniel Keith
Принадлежит: SigmaSense, LLC.

A touch sensor device (TSD) includes TSD electrodes associated with a surface of the TSD. Also, an overlay that includes marker electrode(s) is also associated with at least a portion of the surface of the TSD. The TSD also includes drive-sense circuits (DSCs) operably coupled to the plurality of TSD electrodes. A DSC is configured to provide a TSD electrode signal to a TSD electrode and simultaneously to sense a change of the TSD electrode signal based on a change of impedance of the TSD electrode caused by capacitive coupling between the TSD electrode and the marker electrode(s) of the overlay. Processing module(s) is configured to process a digital signal generated by the DSC to determine characteristic(s) of the overlay that is associated with the at least a portion of the surface of the TSD. 1. A touch sensor device (TSD) comprising:a plurality of TSD electrodes associated with a surface of the TSD, wherein at least one of an overlay that includes a first one or more marker electrodes also being associated with a first region of the surface of the TSD or a 3-D geometric object that includes a second one or more marker electrodes also being associated with a second region of the surface of the TSD, or; provide the TSD electrode signal to a TSD electrode of the plurality of TSD electrodes and simultaneously to sense a change of the TSD electrode signal based on a change of impedance of the TSD electrode caused by at least one of capacitive coupling between the TSD electrode and the first one or more marker electrodes based on the overlay being associated with the first region of the surface of the TSD or capacitive coupling between the TSD electrode and the second one or more marker electrodes based on the 3-D geometric object being associated with the second region of the surface of the TSD; and', 'generate a digital signal that is representative of the change of impedance of the TSD electrode;, 'a plurality of drive-sense circuits (DSCs) operably coupled to the ...

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Номер записи: 64
04-02-2021 дата публикации

VEHICLE SENSOR SYSTEM AND METHODS OF USE

Номер: US20210031753A1
Автор: Buttolo Pietro, Dellock Paul Kenneth, Glickman David Brian, Salter Stuart C.
Принадлежит:

A vehicle assembly includes a sensor system of a bumper or a skid plate. The sensor system includes a plurality of first sensors and at least one second sensor. The sensor system emits a first electrical field from each of the first sensors when the plurality of first sensors are active and the at least one second sensor is inactive. The sensor system emits a second electrical field when the plurality of first sensors are active and the at least one second sensor is active. The first electrical field projects a first distance from the skid plate. The second electrical field projects a longer, second distance from the skid plate. 1. A vehicle assembly , comprising:a sensor system of a bumper or a skid plate, the sensor system including a plurality of first sensors and at least one second sensor,the sensor system emitting a first electrical field from each of the first sensors when the plurality of first sensors are active and the at least one second sensor is inactive, the sensor system emitting a second electrical field when the plurality of first sensors are active and the at least one second sensor is active,the first electrical field projecting a first distance from the skid plate, the second electrical field projecting a greater, second distance from the skid plate.2. The vehicle assembly of claim 1 , wherein each of the first sensors is spaced horizontally a distance from the remaining first sensors.3. The vehicle assembly of claim 2 , wherein at least a portion of the at least one second sensor is disposed horizontally between each of the first sensors.4. The vehicle assembly of claim 2 , wherein the at least one second sensor extends about a perimeter of each of the first sensors.5. The vehicle assembly of claim 1 , wherein the at least one second sensor is shorted when inactive.6. The vehicle assembly of claim 1 , further comprising a switch pack configured to short the at least one second sensor to ground to inactivate the at least one second sensor claim 1 ...

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Номер записи: 65
05-02-2015 дата публикации

MEASUREMENT CORRECTION APPARATUS, METHODS, AND SYSTEMS

Номер: US20150039231A1
Автор: Celepcikay Ferhat Turker, Donderici Burkay, Hou Junsheng, San Martin Luis Emilio
Принадлежит:

In some embodiments, an apparatus and a system, as well as a method and an article, may operate to calculate a map that transforms fast modeled measurement results into accurate modeled measurement results within a modeled data space, to make actual measurements using a tool disposed in a borehole, to transform a plurality of modeling parameter vectors into the fast modeled measurement results via modeling, to transform the fast modeled measurement results into the accurate modeled measurement results using the map, to locate a matching modeling parameter vector as one of the plurality of modeling parameter vectors that matches the accurate modeled measurement results to the actual measurement, and to display at least a portion of the matching modeling parameter vector to represent at least one property of a geological formation. Additional apparatus, systems, and methods are described. 1. A system , comprising:a housing;at least one down hole sensor attached to the housing, the at least one down hole sensor to provide an actual measurement characterizing a geological formation; anda processor to calculate an AF map that transforms accurate modeled measurement results into fast modeled measurement results within a modeled data space, to receive the actual measurement from the down hole sensor, to transform the actual measurement into the fast modeled measurement results using the AF map, and to transform the fast modeled measurement results into a modeling parameter vector via inversion.2. The system of claim 1 , wherein the processor is located in a workstation at the surface claim 1 , and wherein the processor is configured to process at least a portion of the modeling parameter vector to represent a value of at least one property of a geological formation on a display.3. The system of claim 1 , wherein the down hole sensor comprises at least one of a multi-element induction logging tool or a caliper tool.4. The system of claim 1 , further comprising:a telemetry ...

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Номер записи: 66
24-02-2022 дата публикации

SURGICAL FERROMAGNETIC OBJECT DETECTION SYSTEM AND METHOD

Номер: US20220054036A1
Автор: Bachaalany Elias, Barsom Amgad, Maalouf Imad, Mikhail Albert A., Touma Pierre
Принадлежит:

A system and/or method for detecting a ferromagnetic object during surgery comprises a probe tip magnetoresistance device configured for insertion into a human or animal cavity and a probe base magnetoresistance device configured for remaining outside the cavity. The system and method detect the ferromagnetic object by comparing the electrical signals generated by the probe tip and the probe base magnetoresistance devices in response to the ambient magnetic field without generating a magnetic field to detect the ferromagnetic object. 1. A surgical system for detecting a ferromagnetic object in a living organism , wherein:{'claim-text': [{'claim-text': ['a distal end configured for insertion into the living organism; and', 'a proximal end configured for remaining outside the organism;'], '#text': 'a probe shaft comprising:'}, 'a probe tip magnetoresistance module wherein the probe tip magnetoresistance module is located at the distal end of the probe shaft;', 'a probe base magnetoresistance module wherein the probe base magnetoresistance module is located on the proximal end of the probe shaft;'], '#text': 'the system comprises:'}{'claim-text': ['the probe tip X-axis magnetoresistance sensor generates a probe tip X-axis electrical signal;', 'the probe tip Y-axis magnetoresistance sensor generates a probe tip Y-axis electrical signal; and', 'the probe tip Z-axis magnetoresistance sensor generates a probe tip Z-axis electrical signal in response to the ambient magnetic field at the distal end of the shaft;'], '#text': 'the probe tip magnetoresistance module comprises a probe tip X-axis magnetoresistance sensor, a probe tip Y-axis magnetoresistance sensor, and a probe tip Z-axis magnetoresistance sensor wherein the probe tip X-axis sensor, the probe tip Y-axis sensor, and the probe tip Z-axis sensor are responsive to the ambient magnetic field in three orthogonal axes at the distal end of the shaft and wherein:'}{'claim-text': [{'claim-text': ['the probe base Y-axis ...

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Номер записи: 67
11-02-2016 дата публикации

PROXIMITY SENSOR OF AN ASSEMBLY

Номер: US20160041288A1
Автор: Backes Ulrich
Принадлежит:

A proximity sensor () is provided which comprises a magnet () and a sensor (). The sensor () is aligned relative to the magnet () in such a manner that the direction (E) of maximum sensitivity of the sensor () is formed so as to be substantially parallel to the magnet axis (M) extending through the poles () of the magnet (). Further, an assembly unit () is provided. 1121618181618202216. A proximity sensor () comprising a magnet () and a sensor () , the sensor () being aligned relative to the magnet () in such a manner that the direction (E) of maximum sensitivity of the sensor () is oriented so as to be substantially parallel to the magnet axis (M) extending through the poles ( , ) of the magnet ().21216. The proximity sensor () according to claim 1 , wherein the magnet () is a permanent magnet.31218. The proximity sensor () according to claim 1 , wherein the sensor () is a magnetic field sensor.41218. The proximity sensor () according to claim 1 , wherein the sensor () is a GMR sensor or a Hall sensor.512242618. The proximity sensor () according to claim 1 , wherein flux guiding elements ( claim 1 , ) are provided claim 1 , in particular on the sides of the sensor ().612242616202216. The proximity sensor () according to claim 5 , wherein the flux guiding elements ( claim 5 , ) rest against the magnet () claim 5 , in particular at the two poles ( claim 5 , ) of the magnet ().712183428. The proximity sensor () according to claim 1 , wherein the sensor () is provided in an integrated circuit () comprising a printed circuit board ().81234. The proximity sensor () according to claim 7 , wherein the circuit () constitutes a switch.912183228163028. The proximity sensor () according to claim 7 , wherein the sensor () is arranged on a first side () of the printed circuit board () and the magnet () is arranged on a second side () of the printed circuit board ().10122426322818. The proximity sensor () according to claim 7 , wherein the flux guiding elements ( claim 7 , ) are ...

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Номер записи: 68
12-02-2015 дата публикации

PROTECTOR WITH SENSOR

Номер: US20150042361A1
Автор: Haruta Akira, HIRAKAWA Yuzo, Matsuda Keigo, TOMOYASU Shingo
Принадлежит: Nishikawa Rubber Co., Ltd.

A protector with a sensor is installed on a sliding door for detecting an alien substance by touch between two core wires in a hollow part. In a terminal part of the protector with the sensor, the core wires drawn out are connected with a resistor or leads joined with a control unit. A primary seal is formed by injection molding for coating wire connection parts and another end side of an insert and a secondary seal is formed by the injection molding for coating a part formed with the primary seal for forming an external shape of a product. 1. A protector with a sensor comprising: an installation base member operatively coupled on a peripheral edge of an opening or closing object for opening or closing an opening of an automobile body , the opening or closing object including a door or a sun roof of an automobile , or on a peripheral edge of said opening; and a hollow part unified with the installation base member , the hollow part having two core wires and a space provided therein , the space being positioned between the two core wires; said installation base member and said hollow part forming an extrusion molded part made of a rubber like elastic body which is extrusion molded , in which:when an alien substance, caught between said opening or closing object and said opening, presses and deforms said hollow part while closing said opening or closing object, a corresponding change in electric signal detects said alien substance; andin a terminal part of said extrusion molded part, said core wires drawn out in a longitudinal direction are connected with leads, said leads being joined with a control unit or an electrical component, and one end side of an insert made of a non-conductive material is inserted in and fills up said space, and said terminal part of said extrusion molded part is die molded, wherein:the terminal part of said extrusion molded part has a primary sealing layer and a secondary sealing layer formed thereon by injection molding respectively, said ...

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Номер записи: 69
24-02-2022 дата публикации

CAPACITANCE SENSING DEVICE OPERATION METHOD

Номер: US20220057540A1
Автор: LIN WANG-AN, WANG CHUN-LUN, Wu Chung-Jung
Принадлежит:

The present application relates to a method of operating a capacitance sensing device comprises: calculating a difference of a raw data compared to one of the raw data received in a previous data frame; and performing a comparison calculation based on the raw data and a stored baseline value to determine whether a proximity event has occurred. Under the proximity event, selects one of several baseline value update procedures based on the magnitude of the difference. Thus, the present application effectively avoids the problem of failure to update the baseline value when the object is close to the capacitance sensing device for a long period of time, which may lead to misjudgment of the capacitance sensing device. 1. A capacitance sensing device operation method , which is implemented by a signal processing circuit , a baseline processing circuit and a proximity sensing circuit; the capacitance sensing device operation method includes:the signal processing circuit receiving a detecting data;the baseline processing circuit calculating the difference between the detecting data and the detecting data received from the previous data frame;the proximity sensing circuit implementing a comparing operation on the detecting data and a preserved baseline value to judge if a proximity event occurs or not;wherein when the proximity event is occurred, the baseline processing circuit follows the range that the difference falls within to select a proximity baseline updating procedure from a plurality of proximity baseline updating procedures to update the baseline value;when the proximity event isn't occurred, the baseline processing circuit follows a non-proximity baseline value updating value to update the baseline value; andthe baseline processing circuit outputs the updated baseline value to the proximity sensing circuit.2. The capacitance sensing device operation method of claim 1 , in which the proximity baseline updating procedure includes the updating of a first proximity ...

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Номер записи: 70
06-02-2020 дата публикации

AVOIDING GEOLOGICAL FORMATION BOUNDARIES DURING DRILLING OPERATIONS

Номер: US20200040718A1
Автор: DAVILA Michael Joseph, DJEFEL Bronwyn Michelle, Song Xiaobin, WU Zhiqin
Принадлежит: HALLIBURTON ENERGY SERVICES

Systems and methods for avoiding geological formation boundaries during drilling operations by identifying and intuitively displaying the uncertainty of geological formation boundaries relative to an entire well-path. 1. A method for avoiding geological formation boundaries during drilling operations , comprising:a) creating a curtain plot that includes two inverted parameters representing formation boundaries and formation resistivity, uncertainties for each formation boundary, projected uncertainties for each formation boundary, a drilled well-path and a planned well-path;b) calculating uncertainties and projected uncertainties for the drilled well-path and the planned well-path, respectively, in one of the curtain plot and an updated curtain plot using data from a survey tool, the drilled well-path, the planned well-path and a computer processor;c) displaying one of the certain plot and the updated certain plot with the uncertainties and the projected uncertainties for the drilled well-path and the planned well-path, respectively; andd) geosteering the drilling operations to maintain or adjust the planned well-path within the projected uncertainties for the planned well-path and avoid the projected uncertainties of each formation boundary displayed on the curtain plot.2. The method of claim 1 , further comprising:e) updating one of the curtain plot and the updated curtain plot, in real-time, as the drilled well-path is progressively drilled; andf) repeating steps b)-e) until the drilled well-path reaches a final well-path target.3. The method of claim 1 , wherein the inverted parameter representing formation resistivity is variable density log data acquired from a logging tool in a high-angle claim 1 , horizontal claim 1 , active well.4. The method of claim 1 , wherein the uncertainties and the projected uncertainties for each formation boundary represent three probabilities with respect to matching each respective actual formation boundary.5. The method of claim ...

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Номер записи: 71
06-02-2020 дата публикации

CAPACITIVE SENSOR AND GRIP SENSOR

Номер: US20200041680A1
Автор: Naitou Hiroshi, NISHIO Tsuyoshi, OKAZAKI YUTA
Принадлежит:

Capacitive sensor includes sensor electrode, sensor circuit that is electrically connected to sensor electrode measures capacitance of sensor electrode, first impedance element, noise detection circuit that is electrically connected to sensor electrode through first impedance element and measures noise, and control circuit that switches between on and off of each of sensor circuit and noise detection circuit. Control circuit causes sensor circuit to measure the capacitance of sensor electrode by turning on sensor circuit and by turning off noise detection circuit and control circuit causes noise detection circuit to measure the noise by turning off sensor circuit and by turning on noise detection circuit. 1. A capacitive sensor comprising: a sensor circuit;', 'a first impedance element;', 'a noise detection circuit; and', 'a control circuit,', 'wherein the sensor circuit is electrically connected to the sensor electrode and measures capacitance of the sensor electrode,', 'the noise detection circuit is electrically connected to the sensor electrode through the first impedance element and measures noise with respect to the capacitance,', 'the control circuit causes the sensor circuit to measure the capacitance of the sensor electrode by turning on the sensor circuit and by turning off the noise detection circuit, and', 'the control circuit causes the noise detection circuit to measure the noise by turning off the sensor circuit and by turning on the noise detection circuit., 'a sensor electrode;'}2. The capacitive sensor according to claim 1 , further comprising a second impedance element including two terminals of a first terminal and a second terminal claim 1 ,wherein the sensor electrode and the first terminal are electrically connected to each other,the noise detection circuit and the second terminal are electrically connected to each other,the noise detection circuit switches between grounding and open of the second terminal, andwhen the control circuit causes ...

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Номер записи: 72
01-05-2014 дата публикации

Passive Magnetic Ranging for SAGD and Relief Wells Via a Linearized Trailing Window Kalman Filter

Номер: US20140121971A1
Автор: Estes Robert A., HANAK FRANCIS CHAD
Принадлежит:

A method of drilling a well is disclosed. A first estimate is obtained of a location of the well with respect to a reference well at a selected depth. A magnetic measurement is obtained at the selected depth using a sensor. The obtained magnetic measurement is related to a residual magnetic charge distribution in the reference well. An expected value of the magnetic measurement at the selected depth is determined from the residual magnetic charge distribution. A second estimate is obtained of the location of the well using the first estimate of the location, the obtained magnetic measurement and the expected value of the magnetic measurement. A drilling parameter of the well is altered using the second estimate of the location. 1. A method of drilling a well , comprising:obtaining a first estimate of a location of the well with respect to a reference well at a selected depth;obtaining a magnetic measurement at the selected depth using a sensor, wherein the obtained magnetic measurement is related to a residual magnetic charge distribution in the reference well;determining an expected value of the magnetic measurement at the selected depth from the residual magnetic charge distribution;obtaining a second estimate of the location of the well using the first estimate of the location, the obtained magnetic measurement and the expected value of the magnetic measurement; andaltering a drilling parameter of the well using the second estimate of the location.2. The method of claim 1 , further comprising measuring the residual magnetic charge profile on a casing tubular at an uphole location and tracking the location of the casing tubular when it is disposed in the reference well to determine the residual magnetic charge distribution in the reference well.3. The method of claim 1 , further comprising storing data related to estimating well location in an array having array locations X. . . Xcorresponding to depths d. . . d claim 1 , respectively.4. The method of claim 3 , ...

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Номер записи: 73
18-02-2021 дата публикации

Narrow Window Magnetic Proximity Sensor

Номер: US20210048549A1
Автор: Poole David Larry
Принадлежит: Phoenix America, Inc.

A magnetic proximity sensor includes a normal magnetic field vector sensing element oriented to detect the magnetic field strength of a target magnet in a normal field vector direction. The magnetic proximity sensor also includes a transverse magnetic field vector sensing element oriented to detect the magnetic field strength of the target magnet in a transverse field vector direction. A logic circuit is connected to the normal magnetic field vector sensing element and to the transverse magnetic field vector sensing element, and is configured to indicate when both the magnetic field strength of the target magnet in the normal field vector direction is greater than a normal magnetic field vector sensing threshold and the magnetic field strength of the target magnet in the one or more transverse field vector directions is lesser than an absolute transverse magnetic field vector sensing threshold. 1. A magnetic proximity sensor , comprising:a normal magnetic field vector sensing element oriented to detect the magnetic field strength of a target magnet in a normal field vector direction;at least one transverse magnetic field vector sensing element oriented to detect the magnetic field strength of the target magnet in at least one transverse field vector direction; anda logic circuit connected to the normal magnetic field vector sensing element and to the at least one transverse magnetic field vector sensing element, the logic circuit being configured to indicate when both the magnetic field strength of the target magnet in the normal field vector direction is greater than a normal magnetic field vector sensing threshold and the magnetic field strength of the target magnet in the at least one transverse field vector direction is lesser than an absolute transverse magnetic field vector sensing threshold.2. The magnetic proximity sensor of claim 1 , wherein:at least one of the normal magnetic field vector sensing element detecting the magnetic field strength of the target ...

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Номер записи: 74
18-02-2016 дата публикации

ELECTRIC NEAR-FIELD PROBE, CONTROL SYSTEM FOR SAME, AND PIEZOELECTRIC CRYSTAL DETECTOR

Номер: US20160047932A1
Автор: AKABA Hideo, ITOZAKI Hideo, KATSUTANI Fumiya, MIYATO Yuji, SHINOHARA Junichiro
Принадлежит: OSAKA UNIVERSITY

Provided is a compact and lightweight electric field probe which has a transmitting/receiving function whereby piezoelectric crystals can be excited through the application of an alternating current electric field thereto, and piezoelectric effect signals can be detected with sufficient sensitivity. Also provided are a control system for the same, and a piezoelectric crystal detector. The electric near-field probe is provided with a capacitor, in which the space between two metal plates that are positioned parallel to each other is filled by a conductor or air, and a series resonance circuit, which has a prescribed resonance frequency and is connected in series to an inverter that is formed by winding a conductive wire around a toroidal core. The electric near-field probe is configured such that: an electric near-field, which originates from the leakage electric field from the capacitor generated by the application of alternating current voltage to the series resonance circuit, is transmitted to the piezoelectric crystals, and the piezoelectric crystals are excited; and the piezoelectric effect signal, which is generated by the excited piezoelectric crystals, is received by the capacitor, and is detected by the series resonance circuit. The control system is for said electric near-field probe. 1. An electric near-field probe comprisinga series resonance circuit that is constructed such thata capacitor constructed such that a space between two metal plates arranged in parallel to each other is filled with a dielectric material or air andan inductor constructed such that a lead wire is wound around a toroidal core,are connected in series and that has a predetermined resonance frequency,wherein an electric near-field originating from a leakage electric field from the capacitor generated when an alternating voltage is applied to the series resonance circuit is transmitted to a piezoelectric crystal so that the piezoelectric crystal is excited and, at the same time,a ...

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Номер записи: 75
19-02-2015 дата публикации

TOWABLE TRANSIENT ELECTROMAGNETIC SURVEY DEVICE

Номер: US20150048834A1
Автор: Allen David
Принадлежит:

A towable transient electromagnetic survey device for connection to a land, water based or an airborne towing vehicle is provided. The towable transient electromagnetic survey device includes a central body structure and a number of booms extending therefrom to interconnect the central body structure to the towing vehicle and suspend a transmitter loop for generating a primary electromagnetic field. Receiving loop(s) and transmitter loop(s) may also be housed in the central body structure. The central body structure may also be configured for switching in and out of connection of various transmitter and receiver loop configurations. In particularly preferred arrangements, the location of a transmitter loop or a pair of transmitter loops relative to a receiver loop is effective for substantially nulling mutual inductance between the transmitter loop(s) and the receiver loop. 1. A towable transient electromagnetic survey device for connection to a land or water based towing vehicle , comprising:a central body structure defining at least two substantially parallel and vertically spaced apart bounded planes, an upper plane and a lower plane;a first boom configured to interconnect the central body structure to a towing vehicle in a spaced apart relation;a second boom connected to and extending from the central body structure in a substantially opposite direction from the first boom;at least two side booms extending from the central body structure;a transmitter loop for generating a primary electromagnetic field suspended about the distal ends of the second and additional booms and about at least part of the boundary of the upper plane closest to the towing vehicle;at least one receiver loop for receiving changes in secondary electromagnetic field signals from a survey subject, the receiver loop being located about at least part of the boundary of the lower plane; anda power supply connected to the transmitter loop and located in or on the vehicle or the central body ...

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Номер записи: 76
15-02-2018 дата публикации

RESISTIVITY MEASUREMENT WHILE DRILLING DEVICE AND METHOD

Номер: US20180045847A1
Автор: LI Jibo, LI Sanguo, Li Xin, Liu Jianhua, MI Jintai, NI Weining, WANG Wenli, Wu Jinping, ZENG Yijin, ZHAN Meiling, ZHANG Wei, ZHENG Yiting
Принадлежит:

A resistivity measurement while drilling (MWD) device, including: a transmitting module arranged on an outer surface of a drill collar, for generating an induced current between the drill collar and surrounding formation by inductive coupling; a receiving electrode group including at least two electrodes, for receiving a measured current that reaches the electrode from the induced current through corresponding formation, two electrodes in the receiving electrode group being multiplexing electrodes; a resistivity calculation module configured to be connected to all or a part of the electrodes in the receiving electrode group in a measurement mode of the resistivity MWD device, to calculate the measured current received by a corresponding electrode and obtain resistivity of formation corresponding to the corresponding electrode; and a data transmission module configured to be connected to the multiplexing electrodes in a transmission mode of the resistivity MWD device, for transmitting calculated resistivity to a ground device. 1. A resistivity measurement while drilling (MWD) device , comprising:a transmitting module arranged on an outer surface of a drill collar, for generating an induced current between the drill collar and surrounding formation by inductive coupling;a receiving electrode group including at least two electrodes, for receiving a measured current of the induced current that reaches the electrodes through corresponding formation, wherein two electrodes in the receiving electrode group are multiplexing electrodes;a resistivity calculation module configured to be connected to all or a part of the electrodes in the receiving electrode group in a measurement mode of the resistivity MWD device, to calculate the measured current received by a corresponding electrode and obtain resistivity of formation corresponding to the corresponding electrode; anda data transmission module configured to be connected to the multiplexing electrodes in a transmission mode ...

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Номер записи: 77
06-02-2020 дата публикации

DYNAMIC SELECTIVE POLARIZATION MATCHING

Номер: US20200044301A1
Автор: AFILANI Thomas L.
Принадлежит:

An analog matching filter includes a first plate, a second plate coupled with the first plate and separated from the first plate via a spacer, and a replicate matching material fixed to an inside surface of the first plate. A conductive plate or sheet is fixed to an inside surface of the second plate. An electrical circuit connects the first plate to the conductive plate or sheet. The replicate matching material and the conductive plate or sheet generate an opposite polarization pattern carried by the electrical circuit that is based on a polarization pattern of a to-be-detected entity according to a spatial gradient of the to-be-detected entity local electric field distribution. 1. An analog matching filter comprising:a first plate;a second plate coupled with the first plate and separated from the first plate via a spacer;a replicate matching material fixed to an inside surface of the first plate;a conductive plate or sheet fixed to an inside surface of the second plate; andan electrical circuit connecting the first plate to the conductive plate or sheet, wherein the replicate matching material and the conductive plate or sheet generate an opposite polarization pattern carried by the electrical circuit that is based on a polarization pattern of a to-be-detected entity according to a spatial gradient of the to-be-detected entity local electric field distribution.2. An analog matching filter according to claim 1 , wherein the first and second plates are parallel.3. An analog matching filter according to claim 1 , wherein the first and second plates are curved along longitudinal axes thereof.4. An analog matching filter according to claim 3 , wherein the inside surfaces of the first and second plates are concave.5. An analog matching filter according to claim 1 , wherein the first and second plates are formed of a polymer material.6. An analog matching filter according to claim 5 , wherein the first and second plates are formed of acrylonitrile-butadiene-styrene (ABS ...

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Номер записи: 78
08-05-2014 дата публикации

PASSENGER OCCUPANCY IDENTIFICATION SYSTEM

Номер: US20140125355A1
Автор: Grant Zeph
Принадлежит: TrainFX Ltd.

A seat for a passenger vehicle is provided that comprises a first sensor for detecting the presence or absence of an occupant in the seat and a second sensor for validating the seat occupancy. The seat further comprises a transmitter for transmitting a signal indicative of valid occupancy of the seat. The first sensor may be a non-contact, capacitive sensor and the second sensor may comprise a near-field communication device for receiving a seat validation code. A seat validation system may be established on a passenger vehicle such as a train, wherein a central controller may report on seat occupancy status for the vehicle. 1. A seat for a passenger vehicle , the seat comprising:a first sensor for detecting the presence or absence of an occupant in the seat; anda second sensor for validating the seat occupancy, wherein the seat further comprises a transmitter for transmitting a signal indicative of valid occupancy of the seat.2. The seat according to claim 1 , wherein the first sensor comprises a capacitive non-contact sensor.3. The seat according to claim 2 , wherein the first sensor comprises a charged electrode of predetermined area calibrated and mounted relative to the seat so as to define an operational range which extends only slightly beyond an occupant contacting portion of the seat.4. The seat according to claim 2 , wherein the first sensor has an operation range of between 5 and 50 cm.5. The seat according to claim 1 , wherein the first sensor is calibrated so as to have one or more threshold values indicative of a difference between a human occupant and other articles occupying the seat.6. The seat according to claim 1 , wherein the first sensor has a self calibration routine for determining one or more environmental condition and adjusting one or more threshold values indicative of seat occupant detection.7. The seat according claim 1 , wherein the seat comprises a rigid support and upholstery mounted thereon claim 1 , wherein the first sensor is ...

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Номер записи: 79
03-03-2022 дата публикации

Electric tool

Номер: US20220066062A1
Автор: Kohei SUTO
Принадлежит: Max Co Ltd

An electric tool includes an output part that comes into contact with a working target to process the working target, a motor that drives the output part, and a sensor that measures capacitance of a metal part comprising the output part. The electric tool detects a foreign object based on a change in the capacitance measured by the sensor.

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Номер записи: 80
03-03-2022 дата публикации

VEHICLE AND VEHICULAR DIAGNOSTIC SYSTEM

Номер: US20220068129A1
Автор: AOYAMA Hitoshi, NAGAO Tomohiko, Yamamoto Michiharu
Принадлежит:

A vehicle including a magnetic detecting part for detecting a magnetic marker disposed in a road is configured to acquire marker state information indicating the state of the magnetic marker from an external server apparatus via wireless communication and diagnose the state of the magnetic detecting part by using a result of detection of the magnetic marker in which the state of the magnetic marker indicated by the marker state information is good, thereby allowing inspection cost and cost of maintenance of the magnetic detecting part for detecting the magnetic marker to be suppressed. 1. A vehicle including a magnetic detecting part for detecting a magnetic marker disposed in a traveling road of the vehicle , the vehicle comprisinga diagnosing part which diagnoses a state of the magnetic detecting part by using marker state information indicating a state of the magnetic marker.2. The vehicle in claim 1 , further comprising an acquiring part which acquires the marker state information from an external server apparatus via wireless communication.3. The vehicle in claim 1 , wherein the diagnosing part is capable of diagnosing a change in ground clearance of the vehicle in accordance with a change in mount height of the magnetic detecting part in the vehicle.4. The vehicle in claim 1 , wherein marker identifying information for identifying a corresponding magnetic marker is linked to the marker state information claim 1 ,the vehicle includes a tag reader which performs wireless communication with a wireless tag held by the magnetic marker and acquires the marker identifying information usable for identifying the corresponding magnetic marker from the wireless tag, andthe diagnosing part is configured to identify the marker state information of the corresponding magnetic marker by using the marker identifying information acquired from a magnetic marker side.5. The vehicle in claim 1 , wherein the marker state information is information based on a result of statistical ...

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Номер записи: 81
23-02-2017 дата публикации

ROUTE MONITORING SYSTEM AND METHOD

Номер: US20170050653A1
Автор: Fries Jeffrey Michael, Lawson Richard Lee, Mechling Curtis Doyle, MITTI AARON RICHARD, Noffsinger Joseph Forrest, PAGET MARTIN, Shields William David, Weingartner Aric Albert
Принадлежит:

A monitoring method and system monitor a transmitted current that is injected into conductive components of a route traveled by vehicle systems, monitor a received current that represents a portion of the transmitted current that is conducted through the conductive components of the route, examine changes in the transmitted and/or received current over time to determine when the vehicle systems are on the route between a first location where the transmitted current is injected into the conductive components and a second location where the received current is monitored, and examine the changes in the transmitted and/or received currents. The changes are examined to identify (a) a contaminated portion of a surface on which the route is disposed, (b) a foreign object other than the vehicle systems that is contacting the route, and/or (c) a damaged or broken portion of at least one of the conductive components of the route. 1. A method comprising:with a monitoring system having a transmit monitor and a receive monitor electrically coupled to conductive components of a route that is traveled by plural vehicle systems, monitoring transmitted current that is injected into the conductive components at a first location;with the monitoring system, monitoring a received current that represents at least a portion of the transmitted current that is conducted through the conductive components of the route, the received current received at a second, spaced-apart location of the conductive components;at plural different points in time spanning a time period that encompasses the plural vehicle systems traveling over the route plural times, with the monitoring system, sampling at least one of the monitored transmitted current or the monitored received current to generate plural sampled values of the at least one of the monitored transmitted current or the monitored received current; andwith a processor, examining changes in the sampled values to identify one or more of a contaminated ...

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Номер записи: 82
14-02-2019 дата публикации

SYSTEM AND METHOD FOR DETECTING OBJECT

Номер: US20190049623A1
Автор: SHI ZHENG, Wan Yongsheng
Принадлежит:

The present invention provides a system for detecting an object. The system includes a processor, a capacitive sensor operatively linked to the processor, an RF reader, and an object with an embedded RFID tag. The sensing electrode of the capacitive sensor is made from a conductive paste. The RF reader is placed below the capacitive sensor and operatively linked to the processor. And the object is placed above the capacitive sensor. The detection ranges of the capacitive sensor and the RF reader overlap in space. And once the object enters the overlapped detection space, the capacitive sensor detects the object through capacitive coupling and the RF reader detects the object through reading the RFID tag. The use of conductive paste as touch electrode in the system not only substantially eliminates the bidirectional interference resulting from both capacitive sensing and RF identification, but also is convenient and sometimes cost effective. 1. A system for detecting an object , comprising:a processor;a capacitive sensor operatively linked to the processor, wherein the sensing electrode of the capacitive sensor is made from a conductive paste;an RF reader, placed below the capacitive sensor and operatively linked to the processor;an object with an embedded RFID tag, placed above the capacitive sensor;wherein, the detection ranges of the capacitive sensor and the RF reader overlap in space, and wherein, upon the object entering the overlapped detection space, the capacitive sensor detects the object through capacitive coupling and the RF reader detects the object through reading the RFID tag.2. The system of claim 1 , wherein the conductive paste is carbon ink claim 1 , and the sheet resistance of the carbon ink is in the range of 40˜350 Ω/□ after the carbon ink has fully solidified.3. The system of claim 1 , further comprising a plurality of capacitive sensors to form a sensor array claim 1 , wherein the object is placed above the sensor array claim 1 , and wherein ...

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Номер записи: 83
25-02-2016 дата публикации

Correlated double sampling for noise reduction in magnetoresistive sensors and sensor arrays

Номер: US20160054397A1
Автор: Hall Drew A., Kim Kyunglok, Wang Shan X.
Принадлежит:

Correlated double sampling (CDS) for magnetoresistive (MR) sensors is provided. Here the MR sensor output is sampled at two closely spaced times. The first sample is MR signal+baseline+noise and is sampled when the modulated magnetic field is non-zero. The second sample is baseline+noise only because it is sampled when the modulated magnetic field is zero. The difference between the first and second samples will have significantly reduced low frequency noise and baseline cancellation. Modulation of the electrical bias provided to the MR sensor can be used to provide a baseline signal for temperature compensation. In a second aspect, we provide MR sensor arrays having input and output multiplexing and demultiplexing for row and column line selection, in combination with a per-sensor switch to prevent noise accumulation and bandwidth reduction from idle MR sensors. 1. Apparatus for magnetic field sensing , the apparatus comprising:a magnetic field source configured to provide a modulated magnetic field, wherein the modulated magnetic field has intervals of zero magnetic field intensity and/or zero crossings of magnetic field intensity;one or more magnetoresistive sensors having electrical resistances that depend on magnetic field intensity at locations of the magnetoresistive sensors, wherein the magnetoresistive sensors are disposed in the modulated magnetic field;electrical circuitry configured to provide electrical signals that depend on electrical resistances of the magnetoresistive sensors;wherein the electrical circuitry is further configured to sample the electrical signals synchronously with the modulated magnetic field;wherein the electrical signals are sampled during the intervals of zero magnetic field intensity of the modulated magnetic field and/or at the zero crossings of magnetic field intensity of the modulated magnetic field to provide reference sampled data;wherein the electrical signals are sampled at times the magnetic field intensity of the ...

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Номер записи: 84
25-02-2021 дата публикации

INSPECTION DEVICE

Номер: US20210055445A1
Автор: Kawase Masahiro, Matsuoka Takahiro
Принадлежит:

The inspection device includes: a conveyance route that conveys an inspection object at moving speed v; a first magnetic detector and a second magnetic detector that detect a magnetic field of a magnetic foreign object contained in the inspection object; an amplifying unit that amplifies detection signals of the first magnetic detector and the second magnetic detector; and a computation processing unit that performs processing of multiplying the detection signal of the second magnetic detector by a signal obtained by delaying the detection signal of the first magnetic detector. The first magnetic detector and the second magnetic detector each include one magnetic sensor and the magnetic sensors form a pair. 1. An inspection device comprising:a conveying unit configured to convey an inspection object along a conveyance route;a plurality of magnetic detectors configured to detect a magnetic field generated by remanent magnetization of a magnetic foreign object contained in the inspection object; anda computation unit configured to perform processing of multiplying detection signals of the plurality of magnetic detectors together, wherein the computation unit configured to perform processing of multiplying the detection signals for the same inspection object conveyed by the conveying unit together.2. The inspection device according to claim 1 , characterized in that the plurality of magnetic detectors detect a component claim 1 , in a direction perpendicular to a conveyance surface of the conveyance route claim 1 , of the magnetic field generated by the remanent magnetization and are arranged at a predetermined interval in a conveyance direction of the conveying unit claim 1 , andthe computation unit performs time correction on at least one of the detection signals before the multiplication processing such that timings at which the inspection object comes closest to the respective magnetic detectors substantially match each other in the respective detection signals.3. ...

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Номер записи: 85
23-02-2017 дата публикации

VARIABLE RESISTANCE CONDUCTIVE RUBBER SENSOR AND METHOD OF DETECTING AN OBJECT/HUMAN TOUCH THEREWITH

Номер: US20170052270A1
Автор: Baruco Samuel R., Mitchell J.R. Scott, SCHATZ Kurt Matthew
Принадлежит:

A variable resistance conductive rubber sensor and method of detecting an object/human touch therewith is provided. The sensor has a sensor body constructed from electrically conductive rubber. The sensor body extends between opposite first and second ends. A first wire is operably connected to the first end and a second wire may be operably connected to the second end, with the first and second wires being brought into electrical communication with one another by the intermediately extending electrically conductive rubber of the sensor body. A microcontroller is operably connected to the sensor body to detect the presence of an applied force or human touch on the sensor body. 1. A variable resistance conductive rubber sensor comprising:a sensor body made of conductive elastomer defining an outer shape and extending along an axis between a first end and a second end spaced therefrom and being longitudinally flexible relative to the axis and twistable about the axis and radially compressible;a first wire operably connected via a first electrical connector to the first end of the sensor body; andwherein the sensor body exhibits an increase in electrical resistance in response to external contact.2. The variable resistance conductive rubber sensor of further including a microcontroller operably connected to the first wire.3. The variable resistance conductive rubber sensor of further including a resistor operably coupled in series with the sensor body.4. The variable resistance conductive rubber sensor of further including a voltage controlled pulse width modulator between and operably coupled with the sensor body and the resistor.5. The variable resistance conductive rubber sensor of wherein the sensor body exhibits an increase in electrical resistance in response to being elastically deformed when acted upon by an applied force resulting from the external contact.6. The variable resistance conductive rubber sensor of wherein the sensor body exhibits an increase in ...

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Номер записи: 86
23-02-2017 дата публикации

RESIDENT PRESENCE-ABSENCE STATE DETERMINATION DEVICE, DELIVERY SYSTEM, METHOD FOR DETERMINING RESIDENT PRESENCE-ABSENCE STATE, PROGRAM FOR DETERMINING RESIDENT PRESENCE-ABSENCE STATE, AND TERMINAL FOR DELIVERY

Номер: US20170052274A1
Автор: FUKUBAYASHI Yuichiro, Kondo Yasuaki
Принадлежит:

In order to provide a resident presence-absence state determination device which determines an resident presence-absence state with a high degree of accuracy, a delivery system, a method for determining an resident presence-absence state, a recording medium recording a program for determining an resident presence-absence state, and a terminal for delivery, the present invention provides the resident presence-absence state determination device including charge/discharge information acquisition means for acquiring charge/discharge information indicating a discharging status of an electricity storage device for supplying an electric power to a load placed in a house and resident presence-absence state determination means for determining a resident presence-absence state of the house based on the charge/discharge information. 1. A resident presence-absence state determination device comprising:a charge/discharge information acquisition unit that acquires charge/discharge information indicating a charging status or a discharging status of an electricity storage device for supplying an electric power to a load placed in a house; anda resident presence-absence state determination unit that determines a presence-absence state of a residence in the house based on the charge/discharge information.2. The resident presence-absence state determination device according to claim 1 , whereinthe charge/discharge information is information that indicates that the electricity storage device is in a discharge state andthe resident presence-absence state determination unit determines that a resident is in the house when the electricity storage device is in the discharge state.3. The resident presence-absence state determination device according to claim 1 , whereinthe charge/discharge information includes a discharge start time and a discharge end time of the electricity storage device andthe resident presence-absence state determination unit determines that the resident is in the house ...

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Номер записи: 87
15-05-2014 дата публикации

MULTI-FREQUENCY LOCATING SYSTEMS AND METHODS

Номер: US20140132269A1
Автор: Bench Stephanie M., Cox David A., Levin Ryan B., Merewether Ray, Olsson Mark S., Soukup Jan, Turner Timothy M.
Принадлежит:

Multi-frequency buried object location system transmitters and locators are disclosed. A transmitter may generate and provide output signals to a buried object at a plurality of frequencies, which may be selected based on a connection type. Corresponding locators may simultaneously receive a plurality of magnetic field signals emitted from the buried object and generate visual and/or audible output information based at least in part on the plurality of received magnetic field signals. The visual and/or audible output may be further based on signals received from a quad-gradient antenna array. 1. A buried object locator , comprising:a mast;a housing coupled to the mast;a display element disposed on or within the housing; anda processing element disposed in the housing;wherein the processing element is configured to simultaneously receive and process a plurality of magnetic field signals emitted from a buried object at different frequencies and generate, based on two or more of the plurality of magnetic field signals, display information associated with the buried object for rendering on the display element.2. The locator of claim 1 , wherein the display information includes a plurality of lines representing positions of the utility determined based on the plurality of magnetic field signals emitted from the buried object at different frequencies.3. The locator of claim 1 , wherein the display information includes distortion information associated with estimates of the position of the buried object based on two or more of the plurality of magnetic field signals.4. The locator of claim 1 , wherein the estimate of the position of the buried object is displayed as object claim 1 , and the object is blurred as a function of a determined distortion of the position estimate.5. The locator of claim 4 , wherein the object is a line and the line is blurred as a function of the determined distortion of the position estimate.6. The locator of claim 1 , wherein a first of the ...

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Номер записи: 88
05-03-2015 дата публикации

MAPPING RESISTIVITY DISTRIBUTION WITHIN THE EARTH

Номер: US20150061683A1
Автор: Hibbs Andrew Dennis, Marsala Alberto, Petrov Todor
Принадлежит:

Resistivity in subsurface earth at locations kilometers away from wells in the reservoirs is mapped and monitored. An electromagnetic source with an electrode is deployed a borehole in the reservoir, and a group of sensors at counter electrodes is deployed at a number of other locations radially spaced at some distance from the well. The source transmits a current which flows to the counter electrodes causing an electromagnetic field which is sensed at the sensors. The source is activated at different depths in the well and ratios of the electromagnetic field sensed with the source at different depths used to obtain data to map the resistivity. The sensors are capable of sensing electromagnetic fields along two orthogonal axes, and the measurements at a sensor along these axes used to reduce undesirable effects of noise and other factors on the data measurements. 1. A method for mapping the resistivity distribution of subsurface portions within the earth , comprising the steps of:deploying an electromagnetic source in a borehole;deploying an array of electric field sensors adjacent to the surface of the earth aligned radially to the borehole;transmitting an electromagnetic field from the source at a first depth in the borehole;transmitting an electromagnetic field from the source at a second depth in the borehole;measuring the transmitted electromagnetic fields from the source at the first depth and the second depth with the deployed electromagnetic field sensors;obtaining a ratio of the measured electromagnetic fields from the sensors for source transmissions at the first and second depths;obtaining a measure of the resistivity at the sensors based on the based on the obtained ratio of measured electromagnetic fields from the sensors; andmapping the resistivity distribution of the subsurface from the obtained measures of resistivity at the sensors.2. The method of wherein the orientation of the electric field sensors is determined by a magnetic compass.3. The ...

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Номер записи: 89
10-03-2022 дата публикации

Passive Arm For Bi-Directional Well Logging Instrument

Номер: US20220075088A1
Автор: Beard David R.
Принадлежит: Halliburton Energy Services, Inc.

A downhole tool may comprise a tool body that is a structural support for the downhole tool, an upper arm attached at one end to the tool body, a pad attached at an opposite end of the upper arm, a lower arm attached at one end to a sliding block and attached to the pad at an opposite end of the lower arm, and a passive arm connected to the lower arm and the tool body. A method may comprise disposing a downhole tool into a borehole, applying a force to a passive arm, applying a second force from the passive arm to the lower arm in response to the force applied to the passive arm, and moving the lower arm and the passive arm in a longitudinal direction along an axis of the downhole tool. 1. A downhole tool comprising:a tool body that is a structural support for the downhole tool;an upper arm attached at one end to the tool body;a pad attached at an opposite end of the upper arm;a lower arm attached at one end to a sliding block and attached to the pad at an opposite end of the lower arm; anda passive arm connected to the lower arm and the tool body.2. The downhole tool of claim 1 , further comprising one or more pins that connect the upper arm to the tool body and the pad.3. The downhole tool of claim 2 , the one or more pins connect the lower arm to the tool body and the sliding block.4. The downhole tool of claim 1 , further comprising a spring in which the sliding block is connected to at one end and an actuator is connected at the opposite end of the spring.5. The downhole tool of claim 4 , wherein an actuator moves the spring and in turn the sliding block through the spring.6. The downhole tool of claim 1 , wherein the passive arm is connected at one end to the tool body by a pin and connected to the lower arm by a second pin.7. The downhole tool of claim 6 , wherein the second pin is placed within a slot that is formed in the lower arm.8. The downhole tool of claim 7 , wherein the second pin is moveable along a longitudinal length of the slot.9. The downhole ...

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Номер записи: 90
03-03-2016 дата публикации

Electromagnetic Telemetry for Measurement and Logging While Drilling and Magnetic Ranging Between Wellbores

Номер: US20160061027A1
Автор: Depavia Luis E., GAO GUOZHONG
Принадлежит:

A method for signal communication between a well drilling instrument and the Earth's surface includes generating an electromagnetic field in an instrument disposed in drill string used to drill a wellbore. The electromagnetic field includes encoded measurements from at least one sensor associated with the instrument. A signal corresponding to an amplitude of the electromagnetic field is measured and the measurements from the measured signal are decoded. The signal comprises a voltage measured across electrodes or a voltage induced in an electromagnetic receiver disposed at a selected depth below the Earth's surface. The selected depth is at least the depth of a formation below the water table having a highest resistivity within 500 meters of the surface. 1. A method for signal communication between a well drilling instrument and the Earth's surface , comprising:generating an electromagnetic field in an instrument disposed in drill string used to drill a wellbore, the electromagnetic field comprising encoded measurements from at least one sensor associated with the instrument;measuring a signal corresponding to an amplitude of the electromagnetic field; and ["a voltage imparted across a casing in the wellbore and an electrode disposed to a selected depth below the Earth's surface at a selected lateral distance from the casing, wherein the electrode comprises at least one of an electrical conductor, a casing of a second wellbore, and a signal wire disposed in a conduit,", "a voltage imparted across the casing in the second wellbore and a signal wire or an electrode disposed to a selected depth below the Earth's surface,", "a voltage imparted across an electrode tube and a signal wire disposed to a selected depth below the Earth's surface, and", "a voltage induced in an electromagnetic receiver disposed at a selected depth below the Earth's surface"], 'decoding the measurements from the measured signal, wherein the signal comprises at least one of;'}wherein the ...

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Номер записи: 91
01-03-2018 дата публикации

FRINGING FIELD BOOSTER

Номер: US20180059158A1
Автор: Mercer Sean R., Zhong Wenkai
Принадлежит:

The described technology includes an apparatus comprising a proximity sensor pad and booster element located between an antenna and the proximity sensor pad, wherein voltage level of the booster element at least ten percent higher than voltage level of the proximity sensor pad. Implementations of the booster element may be made of metal or metal-ink and may have U-shape or L-shape. 1. An apparatus comprising:a proximity sensor pad; anda booster element located between an antenna and the proximity sensor pad, wherein voltage level of the booster element at least ten percent higher than voltage level of the proximity sensor pad.2. The apparatus of claim 1 , wherein the booster element comprises a rectangular arm extending along length of the proximity sensor pad.3. The apparatus of claim 1 , wherein the antenna is a radio frequency (RF) antenna.4. The apparatus of claim 1 , wherein the booster element is made of at least one of metal and metal ink.5. The apparatus of claim 1 , wherein the booster element includes at least one of a metal pad having an L shape and a metal ink pad having an L shape.6. The apparatus of claim 5 , wherein a long arm of the booster element is parallel to a long edge of the proximity sensor pad and a short arm of the booster element parallel to a short edge of the proximity sensor pad.7. The apparatus of claim 1 , wherein the booster element includes a U-shaped pad having a long arm between two short arms claim 1 , the U-shaped pad made of at least one of metal and metal ink.8. The apparatus of claim 7 , wherein the long arm of the U-shaped pad is parallel to a long edge of the proximity sensor pad and two short arms of the U-shaped pad are parallel to two short edge of the proximity sensor pad.9. The apparatus of claim 1 , wherein the booster is located on a rear edge of a computing device.10. The apparatus of claim 1 , wherein the booster includes a U-shaped pad with a long arm located on a rear edge of a computing device and two short arms ...

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Номер записи: 92
02-03-2017 дата публикации

Flux Plane Locating in an Underground Drilling System

Номер: US20170058663A1
Автор: Brune Guenter W., Chau Albert W., Mercer John E.
Принадлежит:

A portable locator and method for establishing the location of the cable line in a region which includes at least one generally straight electrically conductive cable line extending across the region from which cable line a locating signal includes a first arrangement for measuring a local flux intensity of the locating signal at a first above ground point within the region with the portable locator in a particular orientation at the first above ground point. A second arrangement uses the local flux intensity to establish a cable line angular orientation which limits the possible directions to the cable line relative to the particular orientation of the portable locator at the above ground point. A third arrangement uses the measured local flux intensity to establish an actual direction of the cable line that is selected from the possible directions based on certain characteristics of the locating signal. 1. A portable device for guiding an operator in a system in which an inground tool is moved through the ground within a given region along a path while transmitting a dipole locating signal , said portable device comprising:an antenna for measuring a local flux intensity of the locating signal;a tilt sensor for measuring gravitational angles relating to the portable device; anda processor that is configured for determining components of the local flux intensity in a level coordinate system based on the gravitational angles and to present a directional indication to an operator based on the components of the local flux intensity in the level coordinate system to guide the operator.2. The portable device of wherein the locating signal exhibits locate points at the surface of the ground claim 1 , both forward of and to the rear of the inground tool claim 1 , and the processor is further configured to establish first and second orthogonal components of the local flux intensity in the level coordinate system and to indicate a direction based on the first and second ...

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Номер записи: 93
01-03-2018 дата публикации

CAPACITIVE PROXIMITY SENSING

Номер: US20180059279A1
Автор: Carnaghi Ryan R., Edwards Kevin, Kronschnabel Roderick E., Miller Marcie M., Moss Thomas V., Ross Christopher L., Sanchez Rene J., Schneider Matthew J., Swesey Keith A., Whitehorn Steven W., Yancy Cecilia
Принадлежит:

A capacitive proximity sensor may include a proximity sensing capacitor to provide a voltage output based on a voltage input, the capacitor including a ground plane and an electrode loop capacitively coupled to the ground plane. The proximity sensor may include a processor to detect an object proximity based on a change in the voltage output. This proximity sensor provides automated detection of a person, and thereby reduces the need for a vehicle occupant or child caregiver to activate a sensor by pressing a button. The use of a capacitance-based proximity sensor reduces issues associated with fabric, clothing, or other materials separating the proximity sensor from a person. 1. A proximity sensing apparatus comprising: a ground plane; and', 'an electrode loop capacitively coupled to the ground plane, the electrode loop disposed adjacent to and substantially coplanar with the ground plane to form an electric field in response to the input signal; and, 'a proximity sensing capacitor to provide an output signal indicative of an object proximate to the sensing apparatus based on an input signal, the capacitor includinga processor to detect an object within the electric field based on a change in the output signal.2. The apparatus of claim 1 , wherein an electrode loop geometry and a ground plane geometry are selected to provide a desired electric field geometry for the proximity sensing capacitor.3. The apparatus of claim 2 , wherein the electrode loop geometry is selected to be substantially similar to the ground plane geometry.4. The apparatus of claim 2 , wherein the electrode loop geometry and the ground plane geometry are configured to provide a uniform electric field for sensing the object proximate to the sensing apparatus.5. The apparatus of claim 1 , further including a charging device to provide the input signal to the capacitor claim 1 , wherein the processor detects the object proximity based on a detected capacitor charge time.6. The apparatus of claim 5 ...

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Номер записи: 94
02-03-2017 дата публикации

Identification of degrading electrodes in a marine electromagnetic survey system

Номер: US20170059502A1
Автор: Andras Robert Juhasz, Ulf Peter Lindqvist
Принадлежит: PGS GEOPHYSICAL AS

A system and method is provided for identifying degrading electrodes in a marine electromagnetic survey system. A system may comprise a sensor array operable for use in a marine electromagnetic survey system, wherein the sensor array comprises a plurality of electrodes. The system may comprise a shunt resistor connected to the electrodes and a processor operable to vary a resistance of the shunt resistor in the presence of a voltage across the electrodes. A method for identifying degrading electrodes may comprise measuring an electric field in a body of water with a pair of electrodes, wherein a shunt resistor is connected between the pair of electrodes. The method may comprise varying a resistance of the shunt resistor. The method may comprise measuring a voltage across the shunt resistor while varying the resistance of the shunt resistor to obtain measured voltages for different shunt resistor values. The method may comprise comparing the measured voltages of the different shunt resistor values to calculate resistance of the pair of electrodes.

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Номер записи: 95
02-03-2017 дата публикации

LOCATING ARRANGEMENT AND METHOD USING BORING TOOL AND CABLE LOCATING SIGNALS

Номер: US20170059733A1
Автор: Brune Guenter W., Chau Albert W., Mercer John E.
Принадлежит:

An arrangement and an associated method are described in which a boring tool is moved through the ground within a given region along a path in which region a cable is buried. The boring tool and the cable transmit a boring tool locating signal and a cable locating signal, respectively. Intensities of the boring tool locating signal and the cable locating signal are measured along with a pitch orientation of the boring tool. Using the measured intensities and established pitch orientation, a positional relationship is determined to relative scale including at least the boring tool and the cable in the region. The positional relationship is displayed to scale in one view. The positional relationship may be determined and displayed including the forward locate point in scaled relation to the boring tool and the cable. Cable depth determination techniques are described including a two-point ground depth determination method. 1. A locator as part of a system in which a boring tool is moved through the ground within a region along a path and in which region a cable is buried , and a boring tool locating signal is transmitted from the boring tool and a cable locating signal is transmitted from the cable , said locator comprising:a receiver for measuring intensities of the boring tool locating signal and the cable locating signal and for reading a pitch orientation of the boring tool from the boring tool locating signal; anda processor configured for determining a positional relationship to relative scale including at least the boring tool and the cable in the region based on the measured intensities and the pitch orientation.2. The locator of wherein said boring tool boring tool locating signal exhibits a forward locate point at the surface of the ground and wherein the positional relationship is determined including the forward locate point in scaled relation to the boring tool and the cable.3. The locator of wherein the locator includes a display for displaying the ...

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Номер записи: 96
17-03-2022 дата публикации

Managing vehicle movement in aisles by use of magnetic vectors

Номер: US20220082722A1
Автор: Andrew Nichols, Dean Estill, Larry D. Frederick
Принадлежит: Frederick Energy Products LLC

Proximity detection systems and proximity detections methods are disclosed herein. In one aspect of the disclosure the systems and methods include measuring and analyzing the vector components of a generated magnetic field. In another aspect of the present disclosure, the results of the vector component measurements are used to take safety actions which may result in an alert to an operator or pedestrian, and/or automatic action by a vehicle or machine.

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Номер записи: 97
10-03-2016 дата публикации

MATERIAL-DISCERNING SENSING BY MEASUREMENT OF DIFFERENT POINTS OF IMPEDANCE

Номер: US20160070017A1
Автор: Leek Alan H., Szmulewicz Damian M.
Принадлежит: TEXAS INSTRUMENTS INCORPORATED

A material-discerning proximity sensor is arranged to include an antenna that is arranged to radiate a radio-frequency signal. A capacitive sensor is arranged to detect a change in capacitance of the capacitive sensor and to receive the radio-frequency signal. An electrical quantity sensor is arranged to detect a change of the received radio-frequency signal and a change of a radio-frequency signal at an output of the at least one band pass filter. 1. A material-discerning proximity sensing device comprising:an antenna that is arranged to radiate a radio-frequency signal;a capacitive sensor that is arranged to detect a change in capacitance of the capacitive sensor and that is arranged to receive the radio-frequency signal;an electrical quantity sensor that is arranged to detect a change of the received radio-frequency signal; andat least one band pass filter;wherein the electrical quantity sensor is arranged to detect a change in a radio-frequency signal at an output of the at least one band pass filter.2. The device of further comprising a matched network that is arranged to balance transmission characteristics of the antenna and the at least one band pass filter.3. The device of wherein the electrical quantity sensor comprises an analog to digital converter arranged to quantify the detected change of the received radio-frequency signal and the detected change of the radio-frequency at an output of the at least one band pass filter.4. The device of wherein the electrical quantity sensor comprises an analog to digital converter claim 1 , the analog to digital converter arranged to quantify the detected change of the received radio-frequency signal and the detected change of the radio-frequency at an output of the at least one band pass filter using a sampling rate that is less-than-or-equal-to at least twice the frequency of a carrier wave of the transmitted radio-frequency signal.5. The device of wherein the analog to digital converter is arranged to quantify the ...

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Номер записи: 98
08-03-2018 дата публикации

Method and device for detecting buried metal using synchronous detection method

Номер: US20180067224A1
Автор: KUBOTA Kenshi, TSUNASAKI Masaru
Принадлежит:

To provide a method and device for detecting buried metal, whereby it is possible to radio (wirelessly) transmit a synchronizing signal, and, when the frequency band of the transmission signal is restricted, to problem synchronous detection using a reference signal having a frequency equal to or greater than the frequency band. A method for detecting buried metal using synchronous detection method having a transmitting side device that transmits a transmitting signal (alternating current) to a buried metal for detection and transmits a synchronizing signal for synchronous detection, and a receiving side device for measuring the position and burial depth of the buried metal by detecting a magnetic field generated by the transmitting signal flowing in the buried metal with a magnetic sensor and processing amplitude and phase of the magnetic field, the method including: generating a standard signal of frequency f in the transmitting side device, and n dividing this standard signal to convert it to a transmitting signal of frequency f/n, transmitting this transmitting signal to the buried metal, m dividing the standard signal to convert it to a synchronizing signal of frequency f/m, transmitting this synchronizing signal from the transmitting side device by radio. Receiving the synchronizing signal by the receiving side device, m multiplying this received synchronizing signal to convert it to the standard signal. N dividing this converted standard signal to convert it to a reference signal of frequency f/n. Detecting a magnetic field generated by the transmitting signal flowing in the buried metal and synchronously detecting with the reference signal. 1. A method for detecting buried metal using synchronous detection method having a transmitting side device that transmits a transmitting signal (alternating current) to a buried metal for detection and transmits a synchronizing signal for synchronous detection , and a receiving side device for measuring the position and ...

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Номер записи: 99
27-02-2020 дата публикации

Inductive Proximity Switch

Номер: US20200064510A1
Автор: Martin Bachmann, Olaf Huber
Принадлежит: Pepperl+Fuchs Ag

The invention relates to an inductive proximity switch having a primary coil for generating an alternating magnetic field, with an oscillator for driving the primary coil, with a control and evaluation unit, which is operatively connected to the oscillator and is equipped to acquire and evaluate an amplitude and a phase position of a current in the primary coil and for outputting a detection signal depending on the acquired current in the primary coil, with at least one compensation coil for manipulation of the alternating magnetic field generated by the primary coil. The inductive proximity switch is characterized in that a separate controllable current source is present for controlling the at least one compensation coil.

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Номер записи: 100