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1. 发明授权

US06377351B1 Fiber laser gyroscope with phase sensitive detection 失效
标题翻译：光纤激光陀螺仪，具有相敏检测功能
公开(公告)号：US06377351B1
公开(公告)日：2002-04-23
申请号：US09434170
申请日：1999-11-04
申请人： Byoung Yoon Kim , Jong Bum Hong , Young Bae Yeo , Bong Wan Lee
发明人： Byoung Yoon Kim , Jong Bum Hong , Young Bae Yeo , Bong Wan Lee
IPC分类号： G01C1972
CPC分类号： G01C19/72
摘要： A fiber-optic laser gyroscope having phase sensitive detecting means which can reduce rotation rate measurement errors. In the fiber-optic laser gyroscope, errors due to the relative intensity difference between two consecutive pulses, which was an error factor in rotation rate measurement through time interval measurement between two adjacent pulses, can be eliminated by having a phase sensitive detection means which may extract and detect only components having the same phase as that of a phase-modulated signal from components having the same frequency as that of a phase-modulated signal. An output from the phase sensitive detecting means has an additional characteristic of being linearly proportional to rotation rate. The fiber-optic laser gyroscope of the present invention, therefore, has a characteristic of a relatively simple signal processing compared to conventional interferometric fiber gyroscopes.
摘要翻译：具有相位敏感检测装置的光纤激光陀螺仪可以降低旋转速率的测量误差。在光纤激光陀螺仪中，通过两相邻脉冲之间的时间间隔测量的旋转速率测量中的误差因子，可以消除由于两个相邻脉冲之间的相对强度差引起的误差，具有相敏检测装置，从具有与相位调制信号的频率相同的频率的分量中仅提取和检测与相位调制信号具有相同相位的分量。来自相敏检测装置的输出具有与旋转速率成线性比例的附加特性。因此，与传统的干涉光纤陀螺仪相比，本发明的光纤激光陀螺仪具有比较简单的信号处理的特征。

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