Temperature-insensitive fiber-Bragg-grating-based vibration sensor
Temperature-insensitive fiber-Bragg-grating-based vibration sensor
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DOI：
10.1117/12.429642
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发表时间：
2001-06
期刊：
影响因子：
--
通讯作者：
K. Lee;Kin Seng Chiang;Zhihao Chen
中科院分区：
文献类型：
--
作者：
K. Lee;Kin Seng Chiang;Zhihao Chen
本文提出了一种用于测量振动的简单光纤传感器。该传感器由两个反射光谱部分重叠的光纤布拉格光栅组成，安装在柔性光束的两侧。在这种设置下，光栅反射的光强由光束的振动调制，并且可以在很大程度上消除不利的热效应。实验结果验证了该传感器的可行性。
IN this paper we propose a simple optical fiber sensor for the measurement of vibration. The sensor consists of two fiber Bragg gratings, which have partially overlapped reflection spectra and are mounted on the opposite sides of a flexible beam. With this setting, the light intensity reflected by the gratings is modulated by the vibration of the beam and adverse thermal effects can be largely eliminated. Experimental results are presented to demonstrate the feasibility of the sensor.