| 变频激电法电磁耦合频率效应基本特性和近似改正 |
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| 引用本文： | 王继伦,战克,沈连金,阎立光.变频激电法电磁耦合频率效应基本特性和近似改正[J].桂林工学院学报,1986(1). |
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| 作者姓名： | 王继伦 战克 沈连金 阎立光 |
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| 作者单位： | 冶金工业部地球物理探矿公司
(王继伦，战克，沈连金)，冶金工业部地球物理探矿公司(阎立光) |
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| 摘 要： | 不论中梯还是双偶极装置,在一定条件下的良导体上都会出现明显的电磁耦合效应。电磁耦合频率效应的变化直接与地表电流密度的变化相关,所以也会受到地形起伏的影响。双偶极装置在局部良导体上能够出现与激发极化异常符号相同且形态相似的电磁耦合“异常”。电磁耦合频率效应特性曲线在双对数座标纸上具有较好的分段线性化特点。
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| 关 键 词： | 频率域 激发极化法 电磁耦合 频率效应 近似校正 |
FUNDAMENTAL CHARACTBRISTICS OF ELECTROMAGNETIC COUPLING IN FREQUENCY-DOMAIN INDUCED POLARIZATION AND AN APPROXIMATE CORRECTION METHOD |
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| Wang Jilun,Zhan Ke,Shen Lianjin,Yan Liguang.FUNDAMENTAL CHARACTBRISTICS OF ELECTROMAGNETIC COUPLING IN FREQUENCY-DOMAIN INDUCED POLARIZATION AND AN APPROXIMATE CORRECTION METHOD[J].Journal of Guilin University of Technology,1986(1). |
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| Authors: | Wang Jilun Zhan Ke Shen Lianjin Yan Liguang |
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| Abstract: | Both gradient and dipole-dipole arrays may produce a rather strongelectromagnetic (EM) coupling effect under certain conditions. Variationsin these apparent effects are closely correlated with the changes ofsurface current density and also influenced by topographic relief. Thedipole-dipole array can provide EM coupling anomalies with the samesign and similar shape as true induced-polarization(IP) anomalies. The response curves of frequency effects of EM coupling in logarithmiccoordinates have distinctive features of sectional linearization. |
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| Keywords: | frequecy-domain induced polarization method electromagnetic coupling frequency effect approximate correction |
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