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利用电磁波在地下岩石中的传播规律来解决地质问题,是一种先进的物探方法.近年来,我国在应用钻孔电磁波法勘探金属矿体以及查明石灰岩喀斯特溶洞等方面取得了良好的地质效果.随着方法的发展,需要从理论上对电磁波在地下有耗介质中的传播规律作更深入的研究.举例来说,目前电磁波法的资料解释是以光的直线传播为基础的,这样就不能解释屏蔽体后面的衍射现象.本文在大量模型实验的基础上,对有耗介质中电磁波的衍射和散射作了初步研究.文中所阐明的有耗介质中的物理光学分析方法,在电磁波的传播理论和实际应用中有着一定的意义.
It is an advanced method of geophysical prospecting to solve the geological problems by using the propagation law of electromagnetic waves in the underground rocks.In recent years, China has achieved good geological effects in the exploration of metal orebodies using drilling electromagnetic wave method and the identification of limestone karst caves With the development of the method, it is necessary to do a more in-depth study on the propagation law of electromagnetic waves in the lossy media in the ground theoretically.For example, the data interpretation of the electromagnetic wave method is based on the linear transmission of light, Can not explain the diffraction phenomenon behind the shielding body.Based on a large number of model experiments, this paper makes a preliminary study on the diffraction and scattering of the electromagnetic wave in the lossy medium.The physical optical analysis method in the lossy medium explained in this paper, Propagation theory and practical application has a certain significance.