Control circuit for electro-static accelerometer

Details Control circuit for electro-static accelerometer Control circuit for electro-static accelerometer

1980-12-18

1982-10-12

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

318651, G01P 15125, G01P 1513

Patent

active

043532543

ABSTRACT:
An electro-static capacitive accelerometer is a square law device and includes two fixed plates and an intermediary movable plate. A control circuit detects unbalances in the accelerometer, due to acceleration, and generates a signal which induces a corresponding electro-static corrective torque on the accelerometer thus forcing it toward a null condition. The signal is proportional to the acceleration. The invention eliminates prior art summing amplifiers in the control circuit for linearizing the torque of the accelerometer.

REFERENCES:
patent: 3151486 (1964-10-01), Plummer
patent: 3446079 (1969-05-01), Hohenstein

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