Hybrid BOTDA/FBG sensor for potential railway slope condition monitoring
A highly integrated sensing technology,combing stimulated Brillouin scattering based distributed sensor with FBG sensors on a single fiber,is proposed for simultaneous measurement of fully distributed and multiple discrete dynamic strain.And indoor simulation test is carried out to verify its ability to monitor surface displacement of slope,axial force of anchor reinforcement and vibration of rockfall simultaneously.Experimental results show that distributed static strain and discrete dynamic strain can be well measured simultaneously with little interference.In addition,the proposed hybrid sensor system demonstrates its potential for multiparameter monitoring of slope engineering simultaneously.
BOTDA FBG hybrid sensor railway slope multiparameter monitoring
Feng Li Hongbin Xu Weigang Zhao Yanliang Du
School of Civil Engineering,Wuhan University;Structural Health Monitoring and Control Institute,Shij Structural Health Monitoring and Control Institute,Shijiazhuang Tiedao University
国际会议
The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)
青岛
英文
1356-1357
2018-07-22（万方平台首次上网日期，不代表论文的发表时间）