基于相位光时域反射的光纤分布式声波传感研究
Infrared and Laser Engineering(2017)
Abstract
文中提出了一种光纤分布式声波传感方案.作用在传感光纤上的声波信号导致后向瑞利散射光的相位变化,将含有声波信息的后向瑞利散射信号注入到迈克尔逊干涉仪,并采用相位载波解调算法解调出相位信息.实验中采用压电拉伸器模拟声波振动,分布式声波传感系统实现了10m的空间分辨率以及平坦的频响.
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