| 摘要 |
The gyrometric detection device embodying the invention comprises an annular optical guide comprising two optical couplers, a controllable-frequency light radiation source connected to the inputs of the two couplers via two optical switches driven alternately by a sampling clock so as to obtain emission, in the guide, of a succession of rotating wave trains and counter-rotating wave trains, a circuit for modulating the radiation emitted by the source, a control loop regulating the frequency of the radiation emitted by the source so as to syntonize it with the guide resonance frequency, and a circuit for measuring the intensity of the light radiation of the wave trains transmitted by the second coupler. The invention enables the overcoming of the disturbing effects of backscattering and of the Kerr effect.
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