电磁比值测深及应用前景

来源期刊：中南大学学报(自然科学版)1997年第4期

论文作者：张宪润

文章页码：315 - 318

关键词：视电导率； 频率； 电磁测深； 水平共面； 电磁比值法

Key words：apparent conductivity； freguency； electric-magnetic sounding. horizontal co-plane； EM ratio method

摘    要：电磁比值测深法与常规的电磁测深法不一样，它通过比值的办法压制一次激励磁场的影响，增强对目标体的分辨能力．作者对电磁比值法进行理论推导，并对几种模型地层的理论曲线进行分析，得出：只要工作频率满足应用条件，在解决水文工程地质问题等方面要比CSAMT法和直流电阻率测深法具有明显的优越性．此外，该种测深法既可进行几何测深，又可以进行频率域测深．

Abstract: The EM Ratio Method Sounding (MRMS)is different from traditional EM sounding. By means of ratio, the EMRMS can suppress the influence of strong primary field, and enhance the resolution power.In this paper, through theoretical analysis of EMRMS and analysis of several simulated geological conditions, we think that, as long as the work frequency is selected well, the EMRMS has more significant advantages than that of CSAMT and DCS for mineral deposits exploration and hydrological engineering prospecting.