Laser gyro built in test method and apparatus

Details Laser gyro built in test method and apparatus Laser gyro built in test method and apparatus

1992-07-17

1995-02-14

Buczinski, Stephen C.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 94, G01B 902, H01S 3083

Patent

active

053900197

ABSTRACT:
A laser gyro built in test apparatus. A laser gyro includes a microprocessor which provides a high speed method of communicating test data to an external inertial navigation system. The microprocessor performs tests on the gyro including temperature sensor tests, dither drive tests, active current control tests, and reports on the expected life of the gyro. The gyro can be commanded from the external system to perform any number of the built in test functions. The built in test functions are periodically executed to evaluate the health of the laser gyro and are thereby incorporated in the monitor control loop of the laser gyro.

REFERENCES:
patent: 4299490 (1981-11-01), Cahill et al.
patent: 4342517 (1982-08-01), Johnson et al.
patent: 4702600 (1987-10-01), Handrich et al.
patent: 4718766 (1988-01-01), Greenstein

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