Research on the surface subsidence monitoring technology based on fiber Bragg grating sensing
Jinyu Wang , Long Jiang , Zengrong Sun , Binxin Hu , Faxiang Zhang , Guangdong Song , Tongyu Liu , Junfeng Qi , Longping Zhang
Photonic Sensors ›› 2016, Vol. 7 ›› Issue (1) : 20 -26.
In order to monitor the process of surface subsidence caused by mining in real time, we reported two types of fiber Bragg grating (FBG) based sensors. The principles of the FBG-based displacement sensor and the FBG-based micro-seismic sensor were described. The surface subsidence monitoring system based on the FBG sensing technology was designed. Some factual application of using these FBG-based sensors for subsidence monitoring in iron mines was presented.
Fiber Bragg Grating / rock mass displacement / micro-seismic / optical fiber sensing / surface subsidence
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