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1. 发明授权

US5039220A Optical fiber measuring device, gyrometer, central navigation and stabilizing system 失效
标题翻译：光纤测量装置，陀螺仪，中央导航和稳定系统
公开(公告)号：US5039220A
公开(公告)日：1991-08-13
申请号：US406335
申请日：1989-09-13
申请人： Herve J. Arditty , Philippe Martin , Francois X. Desforge , Phillipe Graindorge , Herve Lefevre
发明人： Herve J. Arditty , Philippe Martin , Francois X. Desforge , Phillipe Graindorge , Herve Lefevre
IPC分类号： E04B2/74 , E04B2/76
CPC分类号： E04B2/76 , E04B2002/7468
摘要： The invention relates to an optical fiber measuring device of the type in which variation of a measured parameter causes a difference of progression of light waves in the optical fiber. Such a device permits measurement of speed of rotation, or of current and magnetic field. The device includes an electronic device for digitally processing a signal indicative of phase shift of one light wave relative to another, the light waves propagating through a preferably monomode optical fiber in a SAGNAC ring interferometer, modulated by a phase modulator. The electronic device includes an analog-digital converter 11, a digital processing system 12 for generating a processor signal reduced to a frequency of modulation around the optical fiber, a control loop digital filter 13 for supplying a parameter indication signal, a register 14 for receiving the parameter indication signal and supplying a register signal which is a function of the measured parameter, an accumulator 15 for generating a digital feedback signal which is a function of the measured parameter, and a digital-analog converter 16 for generating an analog feedback signal for controlling the phase modulator.
摘要翻译：本发明涉及一种光纤测量装置，其中测量参数的变化导致光纤中光波的进行差异。这种装置允许测量旋转速度或电流和磁场。该装置包括用于数字处理指示一个光波相对于另一个光的相移的信号的电子装置，该光通过由相位调制器调制的SAGNAC环形干涉仪中的优选单模光纤传播。电子设备包括模数转换器11，用于产生减少到光纤周围的调制频率的处理器信号的数字处理系统12，用于提供参数指示信号的控制环数字滤波器13，用于接收的寄存器14 参数指示信号并提供作为测量参数的函数的寄存器信号，用于产生作为测量参数的函数的数字反馈信号的累加器15以及用于产生模拟反馈信号的数模转换器16，控制相位调制器。

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