用于大坝边坡监测的光纤测斜仪设计与应用

摘要

Fiber Bragg grating is used to design a fiber inclinometer for remote and online monitoring on dam slope.Sensing principle,mechanical structure,installation of sensing unit and so on are described in detail.Precision of the sensor reaches 0.15°,and quantity of wavelength division multiplexing sensors of the system reaches 20.The technology is applied in several tailings reservoir' s dam safety monitoring.%采用光纤Bragg光栅设计了一种用于大坝边坡监测的测斜传感器,实现了大坝边坡的实时远程在线监测功能.对光纤测斜仪传感原理、传感器机械结构、传感单元的安装等技术细节进行了深入详细描述,传感器角度测量精度达到0.15°,系统波分复用传感器数量达到20只.该技术在多家尾矿库大坝安全监测中得到应用.