Simultaneous measurement of strain and temperature using Fabry?P?rot interferometry and antiresonant mechanism in a hollow-core fiber
Simultaneous measurement of strain and temperature using Fabry?P?rot interferometry and antiresonant mechanism in a hollow-core fiber
复制标题
DOI：
10.3788/col202119.041201
复制
发表时间：
2021-04-10
影响因子：
3.5
通讯作者：
Yao, Yong
中科院分区：
文献类型：
--
作者：
He, Chong;Zhou, Cheng;Yao, Yong
基于法布里-P-罗特(FP)干涉和反共振(AR)机理，提出了一种同时测量应变和温度的光纤传感器，并进行了实验验证。该传感器采用单模光纤(SMF)-空芯光纤-SMF结构。通过跟踪AR机制引起的包络低谷，获得了21.11 pm/？C的温度灵敏度；通过检测FP腔引起的细小条纹，获得了2 pm/pC的应变灵敏度。结果表明，该双参数传感器性能稳定可靠。
A fiber-optic sensor for the simultaneous measurement of strain and temperature is proposed and experimentally demonstrated based on Fabry?P?rot (FP) interference and the antiresonance (AR) mechanism. The sensor was implemented using a single-mode fiber (SMF)?hollow-core fiber?SMF structure. A temperature sensitivity of 21.11 pm/?C was achieved by tracing the troughs of the envelope caused by the AR mechanism, and a strain sensitivity of 2 pm/pc was achieved by detecting the fine fringes caused by the FP cavity. The results indicate that the dual-parameter sensor is stable and reliable.& nbsp;