Ring laser gyro reversely rotated about sensitivity axis

The results of theoretical investigation into a bias ring laser angular rate sensor (bias laser gyro) are presented. It is shown that the sensor angular error is an unsteady Viner’s random process. Its basic characteristic - dreif factor, is investigated and calculated. Dreif factor value of the bias laser gyro is less than dreif factor for dither laser gyro, if the control signal parameters are equal. The optimal choice of these parameters is pointed out that sufficiently decreases the dreif factor for the bias laser gyro.