Photonic Sensors, 2014, 4 (2): 120, 网络出版: 2014-04-09  

Fiber Bragg Grating (FBG) Sensors Used in Coal Mines

Fiber Bragg Grating (FBG) Sensors Used in Coal Mines
作者单位
1 Key Laboratory of Optical Fiber Sensing Technology of Shandong Province, Laser Institute, Shandong Academy of Science, Jinan, 250014, China
2 Shandong Micro-Sensor Photonics Ltd., Jinan, 250014, China
3 Heat Energy and Electric Power Designing Institute of Shandong Province, Jinan, 250013, China
4 Yanzhou Coal Industry Company, Yanzhou, 272102, China
摘要
Abstract
The fiber Bragg grating (FBG) strain sensors were used for on-line monitoring of the stress variation of the lined wall in the gateway retained along the goaf of No. 3203 coal mining face in Dongtan Mine. The results showed that the FBG strain sensor with the wide measuring range could measure the stress variation accurately during the support process of the gateway retained along the goaf and could provide the basis to further optimize the support structure and to determine the support plan of the gateway retained along the goaf. The FBG micro-seismic sensors were used in Xinglong Mine to detect the micro-seismic signal. The signals were well received and analyzed to determine the location and energy level of the source of the micro-seismic event warning. The FBG sensors and detecting system show a significant potential for micro-seismic detection and geological disasters detection.

Jinyu WANG, Tongyu LIU, Guangdong SONG, Hongjing XIE, Lianqing LI, Xiaolin DENG, Zhijie GONG. Fiber Bragg Grating (FBG) Sensors Used in Coal Mines[J]. Photonic Sensors, 2014, 4(2): 120. Jinyu WANG, Tongyu LIU, Guangdong SONG, Hongjing XIE, Lianqing LI, Xiaolin DENG, Zhijie GONG. Fiber Bragg Grating (FBG) Sensors Used in Coal Mines[J]. Photonic Sensors, 2014, 4(2): 120.

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