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专利名称：Position transducer发明人：Charles D. Roach申请号：US06/166652申请日：19800707公开号：US04333066A公开日：19820601
摘要：An electrical transducer for indicating the position of an element movable in apredictable path, such as angular rotation, has no electrical parts on the movableelement. A magnet mounted to the movable element traces a fixed path which liesadjacent to a stationary tubular enclosure containing liquid suspending a mass of
ferromagnetic, electrically conductive material, the magnet drawing the mass of particlesalong within the tube on movement in its fixed path. Electrodes spaced on opposite sidesof the tube wall along the length of the tube are electrically coupled by the mass ofparticles, whereby to indicate the position of the movable element.
申请人：THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OFTHE ARMY
代理人：Nathan Edelberg,Louis Allahut,Norman L. Wilson, Jr.
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