航空科学技术2024，Vol.35Issue(4)：67-73,7.DOI:10.19452/j.issn1007-5453.2024.04.009
结构调制型长周期光纤光栅温度传感器研究
Study on Structurally Modulated Long-period Fiber Grating Temperature Sensor
摘要
Abstract
The temperature monitoring of fuel system is very important for the safety,performance and reliability of aircraft.In this paper,a long-period fiber grating sensor based on laser etching method is proposed and tested,which can be used for temperature monitoring of aircraft fuel system.By demodulating the resonant peak wavelength variation of fiber grating,the precise measurement of ambient temperature can be realized.Experimental results show that this sensor has a temperature sensitivity of 83.1pm/℃and achieves a strain response of 0.32pm/με.Due to the characteristics of flexibility,corrosion resistance and electromagnetic interference resistance for the optical fibers,the proposed sensor can be flexibly installed in the complex structure of the aircraft,which has the ability to improve the safety and reliability of the aircraft.关键词
光纤传感/温度监测/保偏光纤/长周期光纤光栅Key words
optical fiber sensing/temperature monitoring/polarization-maintaining fiber/long-period fiber grating分类
航空航天引用本文复制引用
李媛媛,田甜,陈文焕,马一巍,赵磊,耿涛..结构调制型长周期光纤光栅温度传感器研究[J].航空科学技术,2024,35(4):67-73,7.基金项目
航空科学基金(201608P6003) Aeronautical Science Foundation of China(201608P6003) （201608P6003）
