15-10-2008 дата публикации
Номер: CN0101286404A
Автор:
WANG GUORONG,
LIU SHIDE,
HAN XINQIANG,
WANG YUZHENG,
WANG MENG,
XU FENG,
ZHA WENJIE,
ZHANG XIAOJIN,
QIAN YAOSHENG,
GUORONG WANG,
SHIDE LIU,
XINQIANG HAN,
YUZHENG WANG,
MENG WANG,
FENG XU,
WENJIE ZHA,
XIAOJIN ZHANG,
YAOSHENG QIAN
Принадлежит:
The invention provides an electric permanent-magnetic chuck controller which is used for magnetizing and demagnetizing and has the advantages of high control precision, high triggering reliability, small interference, small volume, convenient wire-connecting installation and high contact capacity and the functions of perfect inspection and alarming protection; the electric permanent-magnetic chuck magnetic controller comprises a microprocessor controller, a power circuit device, a photoelectric isolating circuit device used for controlling signals, a parameter setting circuit device, a magnetizing and demagnetizing current-measuring circuit device, a silicon controlled and triggering driving circuit device, a high-power magnetic latching relay and driving circuit device, a working state relay driving circuit device and a digital display driving circuit device, and is characterized in that the magnetizing and demagnetizing current-measuring circuit device comprises an analog integrator consisting ...
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