Discriminant apparatus for ring laser angular rate sensors

Details Discriminant apparatus for ring laser angular rate sensors Discriminant apparatus for ring laser angular rate sensors

1982-09-30

1987-01-20

Buczinski, Stephen C.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 94, G01B 902, H01S 3083

Patent

active

046377239

ABSTRACT:
In the present application, a discriminant apparatus for a ring laser angular rate sensor is described which provides a discriminant signal indicative of the lock-in rate of the sensor derived from the phase difference between the counter-propagating waves therein. The discriminant signal may be employed in a closed-loop control signal system for altering the coupling of energy between the counter-propagating waves in a ring laser angular rate sensor for controlling the value of the lock-in rate to a minimum rate.

REFERENCES:
patent: 3373650 (1968-03-01), Killpatrick
patent: 3390606 (1968-07-01), Podgorski
patent: 3467472 (1969-09-01), Killpatrick
patent: 4152071 (1979-05-01), Podgorski
patent: 4320974 (1982-03-01), Ljung
patent: 4422762 (1983-12-01), Hutchings et al.

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