材料科学
法布里-珀罗干涉仪
灵敏度(控制系统)
干涉测量
温度测量
拉伤
气泡
压力(语言学)
大气温度范围
光学
复合材料
光电子学
电子工程
机械
波长
物理
医学
内科学
工程类
语言学
哲学
量子力学
气象学
作者
Jingwei Lv,Wei Li,Tongyu Meng,Qiao Li,Jianxin Wang,Xiaofei Xu,Debao Wang,Wei Liu,Chao Liu,Paul K. Chu
标识
DOI:10.1016/j.yofte.2023.103452
摘要
A Fabry-Pérot interferometer (FPI) strain sensor with low-temperature cross-sensitivity is prepared by a simple, cost-effective, and safe process. The sensor is fabricated by splicing two segments of the single-mode fiber and several arc discharges to form a unique circular bubble and a thin wall. The thin air-bubble wall deforms more easily under stress due to the good stress concentration ability of the tapered structure, resulting in a high strain sensitivity of 10.78 pm/µε. The temperature sensitivity of the sensor is 1.24 pm/°C and the temperature cross-sensitivity is 0.115 με/°C in the temperature range of 25 to 200 °C, which reduces the temperature-induced measurement error. The experimental results show that the sensor with good stability and repeatability has large commercial potential in measuring strain in complex environments.
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