利用高双折射光纤环形镜和掺铒光纤同时测量应变和温度

Jie Shi, S. Xiao, He Chen, Min Zhu, Meihua Bi
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引用次数: 0

摘要

研究了一种适合于同时测量温度和应变的光纤传感器结构。该传感器由高双折射光纤环路镜与掺铒光纤串联而成。该配置中使用的高双折射光纤为胶囊状保偏光纤,作为传感器元件。而掺铒光纤则作为温度补偿模块。通过监测峰值功率变化和峰值波长位移,实现温度和应变的同步测量。实验结果表明,温度和染色的均方误差分别为0.35°C和13.34με。该传感器具有结构简单、制作方便、成本低、灵敏度高等优点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Simultaneous measurement of strain and temperature using a high birefringence fiber loop mirror and an erbium-doped fiber
A fiber sensor configuration suitable for simultaneous measurement of temperature and strain is investigated. The sensor consists of a high-birefringence fiber loop mirror concatenating with an erbium-doped fiber. The high-birefringence fiber used in the configuration is capsule shaped polarization maintaining fiber, which serves as the sensor element. While the erbium-doped fiber acts as the temperature compensation module. By monitoring the peak power variation and peak wavelength shift, it is feasible to simultaneously measure temperature and strain. The experimental results show that the mean square errors for temperature and stain are 0.35°C and 13.34με, respectively. The proposed sensor configuration shows several merits, including simple in structure, easy fabrication, low cost and high sensitivity.
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