Angular displacement sensor
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United States of America Patent
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-
Jun 21, 1988
Grant Date -
N/A
app pub date -
Mar 14, 1985
filing date -
Mar 14, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rotational displacement sensor includes a pair of coils stationarily mounted adjacent a rotatable cam formed of a metallic material. The coils are energized by high frequency alternating current. A differential amplifier is connected to the coils such that the output of the amplifier is linearly proportional to the rotational angular displacement of the cam relative to the coils.
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