光纤光栅应变传感的研究  

Study on the Fiber Bragg Grating Strain Sensors

作　　者：夏秀兰[1] 童峥嵘[1] 盛秋琴[2] 施可彬[2] 杨秀峰[1] 

机构地区：[1]天津理工学院光电系,天津300191 [2]南开大学物理学院,天津300071

出　　处：《天津大学学报（自然科学与工程技术版）》2002年第4期473-476,共4页Journal of Tianjin University：Science and Technology

基　　金：天津自然科学基金资助项目 (98360 1 71 1 )

摘　　要：采用一种简单的传感装置和匹配光纤光栅强度解调的方法 ,对光纤光栅应变传感进行了理论分析和实验研究 .结果表明 ,检测信号与传感信号的变化频率一致 ,相位相反 ,当传感信号的幅度不太大时 ,它们的变化波形也一致 。By a simple sensor system and the intensity demodulation method of matched fiber Bragg grating, the fiber Bragg grating strain sensor is studied theoretically and experimentally. The following theoretical conclusions are reached: the frequencies of the detection signal and the sensing signal are the same, their phases are opposite;when the ampltitude of the sensing signal is not too big, their waveforms are the same too. The experimental results are reasonably identical with the theoretical conclusions.

关 键 词：应变传感 匹配光纤光栅 强度解调 传感光纤光栅 光纤光栅传感器 布喇格波长 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]