| 受载煤体电磁辐射的频谱特征 |
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| 引用本文： | 王恩元,何学秋,刘贞堂,周世宁. 受载煤体电磁辐射的频谱特征[J]. 中国矿业大学学报, 2003, 32(5): 487-490 |
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| 作者姓名： | 王恩元 何学秋 刘贞堂 周世宁 |
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| 作者单位： | 中国矿业大学,能源科学与工程学院,江苏,徐州,221008 |
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| 基金项目： | 国家自然科学基金(59874028,50204010)，国家杰出青年基金(59925411)，国家自然科学基金(50134040)，国家“十五”科技攻关计划项目(2001BA803B0408)，江苏省自然科学基金(BK2001075) |
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| 摘 要： | 对受载煤体变形破裂时电磁辐射(EME)的频谱特征进行了研究分析．研究结果表明，在受载煤体变形破裂过程中电磁辐射的频带很宽，其主频段随载荷的变化而发生变化，在受裁初期，电磁辐射的主频带较低，电磁辐射主频带有时呈现先增高而后降低的趋势；在受栽后期，电磁辐射的主频带较高，基本上表现为载荷越大，电磁辐射的主频段越高．
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| 关 键 词： | 煤体 电磁辐射 频谱特征 EME 数学模型 煤岩 监测频带 |
| 文章编号： | 1000-1964(2003)05-0487-04 |
| 修稿时间： | 2002-12-09 |
Frequency Spectrum Characteristics of Electromagnetic Emission of Loaded Coal |
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| WANG En-yuan,HE Xue-qiu,LIU Zhen-tang,ZHOU Shi-ning. Frequency Spectrum Characteristics of Electromagnetic Emission of Loaded Coal[J]. Journal of China University of Mining & Technology, 2003, 32(5): 487-490 |
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| Authors: | WANG En-yuan HE Xue-qiu LIU Zhen-tang ZHOU Shi-ning |
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| Abstract: | Research and analysis were carried on frequency spectrum characteristics of loaded coal's EME during deformation and fracture process. The research results show that the frequency zone is very wide during deformation and fracture process of loaded coal, the main frequency zone is changed with load change; at the initial stage of the load the main frequency zone of EME is low, and sometime it takes on the trend from raise to drop; at the later stage of the load the main frequency zone of EME is high, and its trend is that the larger the load is, the higher the main frequency zone is. |
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| Keywords: | coal electromagnetic emission frequency spectrum characteristics |
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