人民长江2018，Vol.49Issue(5)：100-104,5.DOI:10.16232/j.cnki.1001-4179.2018.05.020
FBG传感器测值误差分析及改进方法研究
Analysis of measurement errors of FBG sensor and improvement method
摘要
Abstract
FBG sensor is a common fiber grating sensor and characterized as electromagnetic interference-free, long signal transmission distance,etc. But limited by measuring instruments, observer technical level, the external environment and other factors,FBG sensor measurement will always have errors. Based on the practical application of FBG sensor in a long water diver-sion tunnel in China, this paper analyzes the measurement errors caused by FBG demodulator, ambient temperature and zero drift,and a series of improved methods are put forward from the FBG demodulator selection,FBG sensor temperature compensa-tion technology and FBG sensor packaging technology to improve the accuracy of FBG sensor in practical engineering application.关键词
FBG传感器/测值误差/引水隧道/安全监测Key words
FBG sensor/measurement error/water diversion tunnel/safety monitoring引用本文复制引用
张俊杰,杨双龙,梅星,张忠举..FBG传感器测值误差分析及改进方法研究[J].人民长江,2018,49(5):100-104,5.基金项目
国家重点研发计划项目"水资源高效开发利用 - 长距离复杂调水工程长效安全运行保障技术与示范"(2016YFC0401809) （2016YFC0401809）
江苏省自然科学基金项目"水工程安全敏感信息分布式移动交互模型研究"(DK20151070) （DK20151070）
