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    • 3. 发明授权
    • Fiber optic gyroscope for detecting angular velocity of rotation using
equivalent time sampling
    • 用等效时间采样检测旋转角度的纤维光学陀螺仪
    • US5080489A
    • 1992-01-14
    • US500013
    • 1990-03-27
    • Kozo NishikawaShuji SonodaHirohisa Nakata
    • Kozo NishikawaShuji SonodaHirohisa Nakata
    • G01C19/72
    • G01C19/721
    • A phase-modulated fiber optic gyroscope comprises a signal generating a signal generating section, a photoelectric converter section and a signal processing section. The signal generating section includes a light source, an optical path for propagating light from the light source clockwise and counterclockwise, and a phase modulator for modulating the light propagating through the optical path. The photoelectric converter section converts an optical signal received from the signal generating section into an electric signal. The signal processing section derives a direction of rotation and a velocity of rotation from the electric signal received from the photoelectric converter section. The signal processing section includes an analog-to-digital converter for converting the electric signal received from the photoelectric converter section into a digital signal, and a digital signal processor for carrying out angle calculations based on the digital signal received from the analog-to-digital converter.
    • 相位调制光纤陀螺仪包括产生信号产生部分,光电转换器部分和信号处理部分的信号。 信号产生部分包括光源,用于顺时针和逆时针传播来自光源的光的光路,以及用于调制通过光路传播的光的相位调制器。 光电转换部将从信号生成部接收的光信号变换为电信号。 信号处理部分从光电转换器部分接收的电信号导出旋转方向和旋转速度。 信号处理部分包括用于将从光电转换器部分接收的电信号转换为数字信号的模数转换器,以及用于基于从模数转换器接收的数字信号执行角度计算的数字信号处理器, 数字转换器。