基于光纤传感技术的瓦斯抽采管道安全监测系统

doi:10.3976/j.issn.1002-4026.2014.03.010

J4 ›› 2014, Vol. 27 ›› Issue (3): 51-56.doi: 10.3976/j.issn.1002-4026.2014.03.010

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Optic fiber sensing technology based safety monitoring system for coal mine gas drainage

LI Yan-Fang^1,2, YUE Jian-Hui³, MENG Hui³

1. Shandong Provincial Key Laboratory of Optical Fiber Sensing Technology, Laser Institute, Shandong Academy of Sciences,Jinan 250014, China; 2. School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China; 3.Shandong MicroSensor Photonics Limited, Jinan 250101, China

Received:2013-10-22 Online:2014-06-20 Published:2014-06-20

Abstract

Abstract:

We developed an optical fiber sensing technology based gas drainage pipeline human body safety monitoring system with spectrum absorption and fiber Bragg grating technology. The system can perform realtime monitoring for such key parameters within the pipe as methane, oxygen, temperature and pressure. The system can also compensate methane concentration based on temperature and pressure, measurement accuracy improvement of 7% and 11% after compensation. Scenario experimental results show that the system can achieve safety monitoring for gas drainage pipeline.

Key words: spectrum absorption, fiber Bragg grating, methane, oxygen, temperature, pressure, coal mine gas drainage

CLC Number:

TP212.4⁺4

LI Yan-Fang, YUE Jian-Hui, MENG Hui. Optic fiber sensing technology based safety monitoring system for coal mine gas drainage[J].J4, 2014, 27(3): 51-56.

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Optic fiber sensing technology based safety monitoring system for coal mine gas drainage

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