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    • 1. 发明申请
    • FIBER OPTICS GYROSCOPE
    • 光纤光栅陀螺仪
    • WO1989001606A1
    • 1989-02-23
    • PCT/EP1988000705
    • 1988-08-04
    • TELDIX GMBHKIESEL, EberhardHILPERT, Klaus
    • TELDIX GMBH
    • G01C19/64
    • G01C19/726
    • A filter optics gyroscope has an optical phase modulator that is supplied with a modulation voltage and that ensures the phase modulation of light rays which circulated in opposite directions in a sensor coil made of fiber optical waveguides. A rotating speed signal is obtained from the superimposed light rays through phase-sensitive rectification. To optimize the phase modulation, switching means are provided that derive a regulating signal through filtering out and phase-sensitive rectification from the output signal of the fiber optics gyroscope, said signal containing in cases when regulation is required, besides the rotating speed signal J1 (2PSI) sin DELTAphi of the fibers optics gyroscope (7), a partial signal concerning the auxiliary modulation frequency (f2) or an odd multiple thereof. The regulating signal influences the modulation voltage of the optical phase modulator, bringing the partial signal of frequency (f2) or its odd multiples at least appproximately down to zero.