FBG传感器在重力墙位移监测中的应用  

Application of FBG sensor in gravity wall displacement monitoring

作　　者：田素辉 熊新[1] 李英娜[1] 赵振刚[1] 谢涛[1] 李川[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650500

出　　处：《传感器与微系统》2015年第10期158-160,共3页Transducer and Microsystem Technologies

基　　金：云南省应用基础研究计划资助项目(2013FZ021);昆明理工大学人才培养基金资助项目(KKSY201303044);国家自然科学基金资助项目(KKGD201203004)

摘　　要：山区公路运营过程中,须掌握重力墙位移的变化,保障公路的安全。通过对重力墙作有限元分析,确定监测区域,并在墙监测区域的表面安装10只光纤光栅位移传感器,横向每隔2m安装一只,设置2个监测段,每段安装5只光纤光栅位移传感器。长期监测表明:重力墙在距离监测起始点0,8,18 m监测点处出现位移的变化较大,最大分别为0.86,0.99,0.69 mm。In process of mountain road operator,change of gravity wall displacement must be mastered. By finite element analysis on gravity walls determine monitoring region,10 fiber grating displacement sensors are mounted on the wall surface of the monitoring region,a lateral installation intervals of 2 m,two monitoring sections are set,each section is installed 5 fiber grating displacement sensors. Long-term monitoring show that gravity walls occurs a larger displacement changes 0,8 and 18 m away from monitor point,the biggest difference is 0. 86,0. 99,0. 69 mm.

关 键 词：重力墙 监测 位移 光纤BRAGG光栅 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]