激光技术2025，Vol.49Issue(2)：271-277,7.DOI:10.7510/jgjs.issn.1001-3806.2025.02.018
基于线型光纤光栅阵列传感的引气管道泄漏监测研究
Research on leakage monitoring of aircraft duct based on linear fiber grating array
摘要
Abstract
The current aircraft inlet pipe leakage monitoring system primarily employs eutectic salt electric superheat detectors as temperature sensing units.A linear array optical fiber sensor probe was investigated for detecting leaks in the aircraft inlet pipe,aiming to overcome the existing technical bottlenecks of the system such as poor electromagnetic compatibility,low measurement accuracy,and slow response time.The fiber grating array parameter design and package structure design were carried out by mathematical modeling and simulation methods,and experimental verification and mathematical analysis were carried out.The research demonstrates that the sensor probe has a certain strain immunity and vibration resistance ability with a temperature sensing accuracy of 0.1 m and positioning accuracy of 1.0 m.A temperature measurement accuracy within±3℃over a working temperature range from 0℃～180℃was achieved.The results of this study provide a new idea for remote distributed and lightweight aircraft bleed air leakage temperature measurement instead of eutectic salt leak detection sensors.关键词
光纤光学/飞机引气/光纤布喇格光栅/温度传感/分布式阵列传感器/大量程Key words
fiber optics/aircraft duct/fiber Bragg grating/temperature sensing/distributed array sensor/wide-range分类
信息技术与安全科学引用本文复制引用
曾川,童杏林,李泽恺,黄文种,史学锋..基于线型光纤光栅阵列传感的引气管道泄漏监测研究[J].激光技术,2025,49(2):271-277,7.基金项目
国家自然科学基金资助项目(62275207) （62275207）
长江水科学研究联合基金资助项目(U2340226) （U2340226）
