| 矿井隧道中电磁场能量的损耗 |
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| 引用本文： | 孙继平,魏占永. 矿井隧道中电磁场能量的损耗[J]. 中国矿业大学学报, 2002, 31(6): 575-578 |
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| 作者姓名： | 孙继平 魏占永 |
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| 作者单位： | 中国矿业大学,机电工程系,北京,100083 |
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| 摘 要： | 运用复玻印亭定理 ,研究了圆空矿井隧道中电磁场能量衰减和转换的方式 ,证明了圆空隧道中电磁功率的流失发生在隧道壁交界面处 .进而证明了圆形隧道充满煤介质时能量损耗与其电导率有关 ,隧道中悬浮的粉尘在电磁场作用下发生瑞利散射 ,散射功率的一部分构成损耗 ,能量损耗与粉尘分布密度成正比 .
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| 关 键 词： | 复玻印亭定理 电磁场能量 圆空隧道 瑞利散射 能量损耗 |
| 文章编号： | 1000-1964(2002)06-0575-04 |
| 修稿时间： | 2002-03-25 |
Loss of Electromagnetic Energy in Mine Tunnel |
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| SUN Ji ping,WEI Zhan yong. Loss of Electromagnetic Energy in Mine Tunnel[J]. Journal of China University of Mining & Technology, 2002, 31(6): 575-578 |
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| Authors: | SUN Ji ping WEI Zhan yong |
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| Abstract: | The mode about transition and attenuation of electromagnetic energy were researched by Complex Poynting Theorem in hollow circular mine tunnel. It was verified that loss of electromagnetic power is at interface between air and tunnel wall in hollow circular tunnel. While the circular tunnel is filled with coal, the energy loss is related with conductivity of coal. The suspended dust excited by electromagnetic field is agreed with to Rayleigh Scattering Law in tunnel. A part of the scattering power is energy loss. It is in direct proportion to density of mine dust. |
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| Keywords: | Complex Poynting Theorem electromagnetic energy hollow circular tunnel Rayleigh Scattering energy loss |
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