Feedback system for controlling lock-in in spring suspended ring

Details Feedback system for controlling lock-in in spring suspended ring Feedback system for controlling lock-in in spring suspended ring

1979-03-21

1981-01-06

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1964

Patent

active

042433240

ABSTRACT:
A system for offsetting lock-in in a spring-suspended ring laser gyroscope by dithering it by means of a torquer whose input is controlled by the sum of an analog positive-feedback signal for cancelling out losses due to damping and a piecewise-constant signal for adjusting the effective dither angular velocity phase in each cycle.

REFERENCES:
patent: 3743969 (1973-07-01), Hutchings
patent: 4132482 (1979-01-01), Friedland

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