| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7124371 | Measurement | 2016 | 8 Pages |
Abstract
The fiber Bragg grating geophone sensor with higher sensitivity and wider frequency range was reported. The methods to increase the sensitivity of the FBG cantilever sensor were presented. The acceleration sensitivity of the optimized FBG geophone is 220Â pm/g, and the resonant frequency can reach to 295Â Hz. The experiments show that the FBG geophone system has the minimum detectable acceleration of 1Â mm/s2. Some factual application examples of using this fiber Bragg grating geophone monitoring system for micro seismic monitoring in coal mine were presented.
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Authors
Jinyu Wang, Binxin Hu, Wei Li, Guangdong Song, Long Jiang, Tongyu Liu,