Path length control method for ring laser gyroscope

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer

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G01C 1964

Patent

active

047550570

ABSTRACT:
The present invention provides for initializing the particular intensity peak selected to operate about, based upon the initial temperature of the gyroscope in order to maintain a selected integer number of wavelengths as the initial cavity path length from start up to start up. In addition, the present invention provides an optimum available movement of the mirrors due to changing the voltage over the available voltage swing for the anticipated range and direction of temperature changes from the start up temperature, over which the gyroscope is expected to operate.

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