| 摘要 |
A dither flexure is mounted between a ring laser gyroscope body and a support such that the ring laser gyroscope may be dithered to have angular oscillations about a sensing axis. A sensor provides signals indicative of the amplitude of the oscillations of the ring laser gyroscope body relative to the support to a control circuit. The control circuit dithers the flexure to maintain the amplitude of the oscillations between a predetermined range at the resonant frequency of the flexure. The frequency of the dither oscillations is modulated about a tracking frequency, and the effect of frequency changes in the dither drive signal on the amplitude of the oscillations is demodulated to determine the resonant frequency of the dither flexure.
|
