Ring laser gyroscope with tilting mirrors

Details Ring laser gyroscope with tilting mirrors Ring laser gyroscope with tilting mirrors

Filed on

1993-11-29

Date issued

1995-11-21

Examiner

Turner, Samuel a.

Patent Class

Optics: measuring and testing

SubClass

By dispersed light spectroscopy

SubSubClass

Utilizing a spectrometer

Other Related Categories

372 94, G01C 1970

Type

Patent

Status

active

Patent number

054692580

Description

ABSTRACT:
A ring laser gyro has tilting mirrors that can be sinusoidally tilted and therefore cause the optical path defined by the mirrors to be sinusoidally rotated (dithered). The dithering of the mirrors takes place in an angular motion. The mirrors are driven by the same drive signal therefore eliminating the need to precisely control the amplitude and phase.

REFERENCES:
patent: 3612690 (1971-10-01), Staats
patent: 4410274 (1983-10-01), Ljung
patent: 4410276 (1983-10-01), Ljung et al.
patent: 4653919 (1987-03-01), Stjern et al.
patent: 4686683 (1987-08-01), Martin
patent: 4824252 (1989-04-01), Lim et al.
patent: 5059028 (1991-10-01), Hill

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