中梯装置相位激电电磁耦合研究  

A study on electromagnetic coupling of central gradient array phase-IP

作　　者：郭鹏[1] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,廊坊065000

出　　处：《物探化探计算技术》2015年第1期22-26,共5页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家重大科学仪器设备开发专项(2011YQ050060)

摘　　要：相位激电法由于具有设备轻便和探测效率高等特点,被越来越多地应用于矿产资源勘查中。相位激电是频率域激电一种,工作中无论采用何种观测装置,都存在着电磁耦合的影响。这里在对中梯装置相位激电电磁耦合影响因素和电磁耦合频率特征研究的基础上,给出一种去除电磁耦合影响的两频校正方法,该方法可基本消除电磁耦合影响,还原激电异常的真实形态。Phase-IP method has the features of portable equipment and high probing efficiency.It is used in mineral re-sources exploration widely.Because Phase-IP is a kind of frequency-domain IP,electromagnetic coupling will exist in any device.This paper discusses the electromagnetic coupling factors and its frequency characteristics of central gradient array Phase-IP,sum-up a set of surveying methods to reduce the electromagnetic coupling effect,and provides a kind of correction method to remove the electromagnetic coupling effects based on two-frequency.This method can basically eliminate the elec-tromagnetic coupling effect,restore the IP anomalies of true form.

关 键 词：相位激电 中梯装置 电磁耦合 电磁耦合校正 

分 类 号：P631.322[天文地球—地质矿产勘探]