Vibratory angular rate sensor

Details Vibratory angular rate sensor Vibratory angular rate sensor

1993-01-14

2000-12-05

Chapman, John E.

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

G01P 904

Patent

active

061551155

ABSTRACT:
A single-axis angular rate sensor is comprised of a transducer and associated electronics. The transducer consists of a symmetric planar inertia member supported by symmetrically disposed coplanar elastic beams. The inertia member is angularly oscillated about its center of gravity about a first axis. Rotation of the sensor about a third orthogonal axis results in Coriolis moments, causing angular oscillations about an orthogonal second axis. The angular oscillations about the second axis are restrained by means of voltages applied to electrostatic electrodes. These voltages are proportional to the angular input rate.

REFERENCES:
patent: 4598585 (1986-07-01), Boxenhorn
patent: 4884446 (1989-12-01), Ljung
patent: 5203208 (1993-04-01), Bernstein

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