Vibratory gyroscope with parasitic mode damping

Details Vibratory gyroscope with parasitic mode damping Vibratory gyroscope with parasitic mode damping

2006-12-22

2009-02-24

Kwok, Helen C. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C073S504130

Reexamination Certificate

active

07493814

ABSTRACT:
Operation of a planar resonator gyroscope with in-plane parasitic modes of vibration to obtain improved performance is disclosed. A planar resonator gyroscope, such as a disc resonator gyroscope, may be operated with embedded electrodes. The embedded electrodes may be disposed adjacent to the planar resonator and proximate to one or more anti-nodes of a parasitic vibration mode. A sensed amplitude of the parasitic mode is applied in differential signals used to operate the gyroscope. A feedback controller for damping the parasitic mode applies a drive voltage generated from the proportional voltage to one or more drive electrodes adjacent to the planar resonator disposed proximate to one or more anti-nodes of the parasitic vibration mode of the planar resonator. Parasitic in-plane modes may be thus damped in operating the gyroscope with active damping applied through an analog operational amplifier or digital feedback.

REFERENCES:
patent: 5383362 (1995-01-01), Putty et al.
patent: 6467346 (2002-10-01), Challoner et al.
patent: 6675630 (2004-01-01), Challoner et al.
patent: 6944931 (2005-09-01), Shcheglov et al.
patent: 7040163 (2006-05-01), Shcheglov et al.
patent: 7159441 (2007-01-01), Challoner et al.
PCT/US2007/088286 International Search Report and Written Opinion.

Affiliated with

Also associated with

Rating

Vibratory gyroscope with parasitic mode damping does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibratory gyroscope with parasitic mode damping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibratory gyroscope with parasitic mode damping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4060631