其中一个光纤迈克尔逊干涉仪通过一个一阶反馈来补偿环境干扰的影响，实现对该测量系统的稳定；
One of the fiber interferometers is used to stabilise the system while the other one is used to perform the measurement task.
该系统基于迈克尔逊干涉仪结构，以窄线宽光纤激光器为光源，采用相位载波零差解调方案实现信号的还原。
The system is based on Michelson interferometer. It USES a fiber laser with narrow linewidth as light source, and adopts homodyne demodulation with phase generated carrier scheme to restore signal.
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