基于8字形接收线圈的浅地表电磁探测技术  

Shallow Surface Electromagnetic Detection Technology Based on Figure-8 Receiving Coil

作　　者：周逢道 王丹[2] 郭岭 ZHOU Fengdao;WANG Dan;GUO Ling(College of Instrumentation&Electrical Engineering,National Geophysical Exploration Equipment Engineering Research Center,Jilin University,Changchun 130061,China;Changchun College of Information Technology,Changchun 130103,China)

机构地区：[1]吉林大学仪器科学与电气工程学院,国家地球物理探测仪器工程技术研究中心,长春130061 [2]长春信息技术职业学院,长春130103

出　　处：《实验室研究与探索》2021年第9期1-5,15,共6页Research and Exploration In Laboratory

基　　金：总装备部预先研究项目(ZLY20150404);吉林省科技发展计划重点项目(20100349)。

摘　　要：为了研究接收信号与金属异常体目标位置之间的关系,建立了基于正交偶极子的异常体数学模型;计算分析了矩形发射线圈下方的磁场分布,结合正交偶极子模型分析了异常体的涡流效应,计算了8字形接收线圈的接收信号,呈正弦形状。Matlab仿真研究了接收信号随目标不同位置的分布规律,实验验证了分析结果的准确性,为探测系统的目标位置识别提供支持。A figure-8 receiving coil is used in shallow surface electromagnetic detection,because it can automatically cancel the interference of the primary field of the transmitting coil.In order to study the relationship between the received signal and the target position of the metal anomaly,a mathematical model of the anomaly based on the orthogonal dipole is established;the magnetic field distribution under the rectangular transmitting coil is calculated and analyzed.Combined with the orthogonal dipole model,the eddy current effect of the abnormal body is analyzed,and the received signal of the figure-8 receiving coil is calculated,and the signal is sinusoidal.Matlab simulation is used to summarize the distribution law of the received signal with different positions of the target,the experiment verifies the accuracy of the analysis results,and provides theoretical support for the research on target position recognition of the detection system.

关 键 词：电磁探测 8字形接收线圈 正交偶极子 目标位置 

分 类 号：TH763[机械工程—仪器科学与技术]