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目前光学陀螺的主要工作原理是Sagnac效应,如何提高Sagnac效应的测量精度是提高陀螺精度的一个重要研究课题.传统的光学陀螺利用光短波长的特性来提高检测精度.但考虑到微波的相位(频率)检测精度远高于光波的相位(频率)检测精度,如果能够利用微波实现Sagnac效应的检测,就能得到比光学陀螺更高的检测精度,从而为实现高精度的微波陀螺提供了可能.利用基于光电振荡器的光载微波结构实现了微波Sagnac效应的检测.实验结果证明了微波检测Sagnac效应的可行性,为将来实现高精度的微波谐振陀螺打下基础.
At present, the main working principle of the optical gyroscope is the Sagnac effect, and how to improve the measurement accuracy of the Sagnac effect is an important research topic to improve the gyroscope precision. The traditional optical gyroscope uses the short wavelength of light to improve the detection accuracy, but considering the phase Frequency) detection accuracy is much higher than the phase (frequency) detection accuracy of light waves, if we can use the microwave to achieve Sagnac effect detection, you can get higher than the optical gyroscope detection accuracy, thus providing high-precision microwave gyroscope possible. The detection of microwave Sagnac effect is realized by using the optoelectronic oscillator based on an optical carrier microwave structure.The experimental results demonstrate the feasibility of microwave detection Sagnac effect and lay a foundation for the future realization of high precision microwave resonant gyroscope.