Force balanced vibratory rate sensor

Details Force balanced vibratory rate sensor Force balanced vibratory rate sensor

1980-02-11

1981-05-19

Gill, James J.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

G01C 1956

Patent

active

042677319

ABSTRACT:
A vibratory inertial rate of turn sensor employs force feed back for maintaining the free end of a vibrating cantilever in a nulled lineal path when subjected to a turn about the beam axis, the electrical signal required for nulling being a measure of rate of turn of the craft. The output signal demodulation self-tracks the beam resonance frequency and the beam drive and null terms balance one another, tending to maintain the sensor scale factor constant over time and temperature. A unique pick-off and beam primary drive and restoring force drive configuration is provided.

REFERENCES:
patent: 3992952 (1976-11-01), Hutton et al.

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