摘要
本文分析了光纤光栅传感的基本原理,在坝体模拟槽试验中具体验证了波长变化与温度的关系;通过建设中的清江水布垭面板坝工程,研究了用于大坝监测的光纤光栅传感器的系统构成,并成功地大规模布设了光栅应变传感器与温度传感器;监测结果表明光纤Bragg光栅传感器监测系统具有良好的稳定性与耐久性,为建筑结构的健康诊断提供可靠的依据。
The relationship of FBG＇s Wavelength change and Strain has been studied, which is testified by the experiments of beam of equal intensity. The techniques of FBG layout has been explored, and 100 FBG strain sensors have been successfully laid in the girders of ShuiBuYa DAM; The strain of the steel bars has been monitored during the construction of the bridge with the FBG stain sensors in the girder. The monitoring results show that the strain of the steel bars can be monitored conveniently with the laid FBG sensors, which provide their durability and stability satisfies for structural health diagnosis.
出处
《微计算机信息》
北大核心
2006年第04S期206-207,共2页
Control & Automation
基金
国家科技部863项目2002AA313140
关键词
光纤光栅传感器
大坝监测
应变监测
Fiber Bragg grating strain sensor
Dam monitoring
Strain monitoring
