24-07-2014 дата публикации
Номер: US20140202016A1
Принадлежит:
A portable articulated arm coordinate measuring machine includes a distance meter to measure 3D coordinates of at least three targets to establish a position and orientation of the articulated arm within a frame of reference established by the at least three targets. 1. A method of operating a portable articulated arm coordinate measuring machine (AACMM) for measuring three-dimensional coordinates of an object in space , comprising:providing the AACMM in a AACMM frame of reference having an origin, the AACMM having a manually positionable arm portion, a base, a noncontact measurement device, and an electronic circuit, the arm portion having an opposed first end and second end, the arm portion including a plurality of connected arm segments, each of the plurality of connected arm segments including at least one position transducer for producing a plurality of position signals, the first end connected to the base, the noncontact measurement device connected to the second end, an electromagnetic radiation transmitter, and a sensor, the electronic circuit configured to receive the plurality of position signals;providing a first reflective target at a first location having first target three-dimensional coordinates in a target frame of reference, a second reflective target at a second location having second target three-dimensional coordinates in the target frame of reference, and a third reflective target at a third location having third target three-dimensional coordinates in the target frame of reference, wherein the first location, the second location, and the third location are non-collinear;manually positioning the second end to direct the transmitted electromagnetic radiation to the first target;measuring a first distance to the first target with the noncontact measurement device and measuring a first plurality of position signals;manually positioning the second end to direct the transmitted electromagnetic radiation to the second target;measuring a second ...
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