Strain-Insensitive Fiber Bragg Grating Composite Structure for Wide-Range Temperature Sensing

作     者：Pingyu Zhu Tingyu Huang Sheng Fan Yukun Yan Bo Peng Danli Xiong Shuai Zhang Marcelo A.Soto 

作者机构：School of Mechanical and Electrical EngineeringGuangzhou UniversityGuangzhouChina Zhuzhou Times New Material Technology Co.LtD.ZhuzhouChina Department of Electronics EngineeringUniversidad Técnica Federico Santa MaríaValparaísoChile 

出 版 物：《Journal of Dynamics, Monitoring and Diagnostics》 (动力学、监测与诊断学报（英文）)

年 卷 期：2024年第3卷第3期

页      面：199-206页

学科分类：080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 

基　　金：the financial support from Zhuzhou Times New Material Technology Co.LtD.(Grant No.XCFDJS-2022-00004495) Chilean National Agency for Research and Development(Basal FB0008) 

主　　题：composite structure fiber bragg grating temperature sensing 

摘      要：This paper reports on the design,fabrication,and temperature strain sensing performance of a fiber Bragg grating composite structure for surface mounted temperature measurements over a wide temperature range,with highly reduced strain *** fiber Bragg grating sensor is encapsulated in a polyimide tube filled with epoxy resin,forming an arc-shaped *** assembly is then placed between two layers of glass fiber prepreg with a flexible pad in between and cured into *** results,supported by finite element simulations,demonstrate an enhanced temperature sensitivity is 26.3 pm/°C over a wide temperature range of–30°C to 70°C,and high strain transfer isolation of about 99.65%.