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Advances in OptoElectronics
Volume 2017, Article ID 2153409, 9 pages
https://doi.org/10.1155/2017/2153409
Research Article

Method Research of Coal Mine Roof Strain Detection Based on the Fiber Bragg Grating Sensor with Thermodynamic Couple Numerical Condition

1College of Computer Science, Yangtze University, Hubei, Jingzhou 434023, China
2Liberal Arts College, Yangtze University, Hubei, Jingzhou 434023, China

Correspondence should be addressed to Zhang Jian; moc.621@6170naijgnahz

Received 6 April 2017; Revised 22 June 2017; Accepted 27 June 2017; Published 3 August 2017

Academic Editor: Somenath N. Sarkar

Copyright © 2017 Zhang Jian et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In order to solve the problem that the measure precision of coal roof rock strain amount detection using traditional electric sensor is insufficient, a kind of High Sensitive Surface-Pasted Fiber Bragg Grating Strain Sensor based on rock bolting is designed for substitution. Furthermore, a kind of Reference Grating Zero-Strain method based on sensitivity matrix coefficient is proposed for solving FBG strain-temperature cross-sensitivity problem and realizing the better separation relevant to strain and temperature. It is proved that the sensitivity and measurement precision and anti-interference ability of FBG strain sensors are better than traditional electricity class sensors, being able to realize the real-time and online detection for coal roof surrounding rock strain.