Control circuit for electro-static accelerometer

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

G - Physics

01

P

73/42

G01P 15/125 (2006.01) G01P 15/13 (2006.01)

Patent

CA 1158886

Title of the Invention: CONTROL CIRCUIT FOR ELECTRO-STATIC ACCELEROMETER Inventors: George F. Schroeder and Edward A. Demers ABSTRACT OF THE DISCLOSURE 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.

388425

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