Vibrating structure gyroscope

Details Vibrating structure gyroscope Vibrating structure gyroscope

1998-02-10

1999-08-03

Williams, Hezron

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

G01P 904

Patent

active

059328045

ABSTRACT:
A vibrating structure gyroscope has a vibratory resonator having a substantially ring or hoop-like shape structure, an electromagnetic drive for causing the resonator to vibrate, a support structure including a plurality of flexible support beams for supporting the resonator whilst allowing it to vibrate and an electromagnetic sensor for sensing movement of the resonator. The support beams and resonator are made from silicon and the electromagnetic drive and sensor include metal tracks which extend externally along each support beam onto and along respective segments of an outer substantially planar surface of the ring-like resonator. The resonator is substantially planar and means is produced a magnetic field substantially perpendicular to the plane of the resonator.

REFERENCES:
patent: 3924475 (1975-12-01), Stiles
patent: 4655081 (1987-04-01), Burdess
patent: 5060039 (1991-10-01), Weinberg et al.
patent: 5203208 (1993-04-01), Bernstein
patent: 5226321 (1993-07-01), Varnham et al.
patent: 5696323 (1997-12-01), Hulsing, II

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