An effective method for laboratory acoustic emission detection and location using template matching
文献类型：期刊论文
| 作者 | Lei, Xinglin1; Ohuchi, Tomohiro4; Kitamura, Manami1; Li, Xiaying2,3; Li, Qi2,3
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| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 14期号:5页码:1642 |
| 关键词 | Acoustic emission Template matching and location Waveform cross-correlation Grid search |
| ISSN号 | 1674-7755 |
| 英文摘要 | In this paper, a template matching and location method, which has been rapidly adopted in microseismic research in recent years, is applied to laboratory acoustic emission (AE) monitoring. First, we used traditional methods to detect P-wave first motions and locate AE hypocenters in three dimensions. In addition, we selected events located with sufficient accuracy (normally corresponding AE events of relatively larger energy, showing clear P-wave first motion and a higher signal-to-noise ratio in most channels) as template events. Then, the template events were used to scan and match other poorly located events in triggered event records or weak events in continuous records. Through cross-correlation of the multi-channel waveforms between the template and the event to be detected, the weak signal was detected and located using a grid-searching algorithm (with the grid centered at the template hypocenter). In order to examine the performance of the approach, we calibrated the proposed method using experimental data of different rocks and different types of experiments. The results show that the proposed method can significantly improve the detection capability and location accuracy, and can be applied to various laboratory and in situ experiments, which use multi-channel AE monitoring with waveforms recorded in either triggering or continuous mode. (C) 2022 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000891299800023 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35351]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8567, Japan 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China 3.University of Chinese Academy of Sciences, Beijing, 100049, China 4.Geodynamics Research Center, Ehime University, Matsuyama, 790-8577, Japan |
| 推荐引用方式 GB/T 7714 | Lei, Xinglin,Ohuchi, Tomohiro,Kitamura, Manami,et al. An effective method for laboratory acoustic emission detection and location using template matching[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2022,14(5):1642. |
| APA | Lei, Xinglin,Ohuchi, Tomohiro,Kitamura, Manami,Li, Xiaying,&Li, Qi.(2022).An effective method for laboratory acoustic emission detection and location using template matching.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,14(5),1642. |
| MLA | Lei, Xinglin,et al."An effective method for laboratory acoustic emission detection and location using template matching".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 14.5(2022):1642. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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