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

Autor:	Jian, Zhang, Chuan, Lu, De-Shu, Lin
Předmět:	FIBER Bragg gratings THERMODYNAMICS DETECTORS TEMPERATURE COAL mining
Zdroj:	Advances in OptoElectronics; 8/3/2017, p1-9, 9p
Abstrakt:	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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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