Dispersion And Gas Flow Effects In The Ring Laser Gyro

F. Aronowitz; W. L. Lim

doi:10.1117/12.965460

15 December 1978 Dispersion and Gas Flow Effects in the Ring Laser Gyro

F. Aronowitz, W. L. Lim

Proceedings Volume 0157, Laser Inertial Rotation Sensors; (1978) https://doi.org/10.1117/12.965460
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

Abstract

The effects of dispersion and gas flow on the operation of the ring laser gyro are summarized. The theory is shown to predict a dimple in the anomalous dispersion properties of the atomic transition. Experiments were carried out using a 43.4 cm and 21.7 cm visible laser gyro. Scale factor and nullshift results showed consistency and confirmed the existence of the dimple. The peak-peak relative magnitude of the scale factor dimple was found to be approximately 25 x 10-6. Gas flow was varied by unbalancing the discharge currents in the two legs of the laser gyro. A nullshift sensitivity of 0.0066 deg/hr/µamp of unbalance was found. Analysis of the data showed the nullshift sensitivity to velocity flow to be 4.4 deg/hr/cm/sec of velocity unbalance.

Citation Download Citation

F. Aronowitz and W. L. Lim "Dispersion and Gas Flow Effects in the Ring Laser Gyro", Proc. SPIE 0157, Laser Inertial Rotation Sensors, (15 December 1978); https://doi.org/10.1117/12.965460

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