Method and system for control and readout of tuning fork gyroscope

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12163787
APP PUB NO 20230119809A1
SERIAL NO

18067044

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Abstract

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A tuning fork sensor system places a controlled bias on the proof-mass drive-axis electrodes to cancel the quadrature charge. Also, its charge amplifiers employ a field-effect transistor biased slightly into the triode region so that it behaves as a very large value resistor. In addition, it uses a phase-locked loop having a special loop filter in order to optimize performance by rejecting off-frequency drive feedthrough to the motor pick-off while resulting in very low phase wander for the demodulation references.

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Patent Owner(s)

Patent OwnerAddress
THE CHARLES STARK DRAPER LABORATORY INC555 TECHNOLOGY SQUARE CAMBRIDGE MA 02139

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Elliott,, III Richard D North Reading, US 2 3
Guyon, Daniel Joseph Cambridge, US 2 3
Ward, Paul A Dedham, US 28 423

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