Optical-fiber vibration sensor using step interferometry
Optical-fiber vibration sensor using step interferometry
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DOI：
10.1364/ao.35.005667
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发表时间：
1996-10-01
期刊：
影响因子：
1.9
通讯作者：
Garcia, P
中科院分区：
文献类型：
--
作者：
Ferrari, JA;Garcia, P
介绍了一种基于阶跃干涉法的全光纤振动传感器。该传感器由改进的迈克尔逊干涉仪组成，在该干涉仪中，参考臂和信号臂的末端被组装并固定在一起，以产生规则分布的干涉条纹。五个相对相移为pi/2的光电探测器放置在条纹上，同时获得五个光强图案。其中一种是使用众所周知的五步算法来重建振动幅度。构建了具有这些特性的振动传感器，并对其性能进行了研究。(C)1996年美国光学学会
An all-fiber vibration sensor based on step interferometry is described. The sensor consists of a modified Michelson interferometer in which the ends of the reference and signal arms are assembled and fixed together to produce regular distributed interference fringes. Five photodetectors with relative phase shifts of pi/2 placed on the fringes acquire five intensity patterns simultaneously. One reconstructs the vibration amplitude by using the well-known five-step algorithm. A vibration sensor with these characteristics was constructed, and its performance was investigated. (C) 1996 Optical Society of America