Servo type accelerometer
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United States of America Patent
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-
Aug 15, 1989
Grant Date -
N/A
app pub date -
Dec 18, 1987
filing date -
Dec 27, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A servo type accelerometer comprises a photoelectric element which is made of a single packaged element and has two separated photoelectric parts, a light-emitting element opposite to the photoelectric element, a pendulum having a member for limiting an optical path of light emitted by the light-emitting element, the member being arranged between the photoelectric element and the light-emitting element, and a frame for supporting the pendulum. The accelerometer further comprises a detection unit for detecting a rotational displacement of the pendulum corresponding to acceleration by use of output signals of the photoelectric parts to produce a detection signal corresponding to the rotational displacement, and torque generating unit for generating a torque corresponding to the detection signal to drive the pendulum towards its original position.
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