D.C. component controlled fiber optic gyroscope

Details D.C. component controlled fiber optic gyroscope D.C. component controlled fiber optic gyroscope

1985-12-17

1989-09-05

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01B 902

Patent

active

048632732

ABSTRACT:
A phase modulation type fiber optic gyroscope having a greatly improved output stability without a large increase in the number of basic components of the gyroscope system. In accordance with the invention, the d.c. component of the output of a light detecting element which provides the two circulating beams is sensed and employed to control the output of the light-emitting element so as to be constant.

REFERENCES:
patent: 4181901 (1980-01-01), Heyke
patent: 4219276 (1980-08-01), Dorsman
patent: 4299490 (1981-11-01), Cahill et al.
"Fiber-Optic Rotation Sensing with Low Drift", Optics Letters, Ulrich, 5-1980, pp. 173-175.

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