发明名称 Determination of optimum modulation amplitude to suppress modulation-distortation-induced rotation sensing errors in a fiber optic gyroscope
摘要 A method, implementable in a resonator fiber optic gyroscope (RFOG) having a first wave generator configured to produce a first resonance-detection modulating signal at a fundamental resonance frequency, includes generating with at least a second wave generator a second modulating signal at an even harmonic of the first modulating signal. The second signal is amplitude-modulated (AM) at a frequency that is harmonically unrelated to the first signal. The first signal is added to the second signal with a summing element to produce a resonator output bias error signal. An optimum amplitude is determined from the error signal. Subsequently, the amplitude of the first signal is controlled to the optimum amplitude.
申请公布号 US7864328(B2) 申请公布日期 2011.01.04
申请号 US20090413304 申请日期 2009.03.27
申请人 HONEYWELL INTERNATIONAL INC. 发明人 STRANDJORD LEE
分类号 G01C19/72 主分类号 G01C19/72
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