摘要
为了避免瞬变电磁法TEM(Transient Electromagnetic Method)系统中的金属成分受发射场激发带来的涡流干扰,本文利用传输函数与发射场卷积获得系统涡流大小,并进行抵扣,以获得真实的地下响应信号。文中介绍了瞬变电磁法工作原理,描述了涡流形态及对SQUID接收信号的影响,同时建立了SQUID系统传输函数的测量装置,并对该传输函数的卷积效果进行了验证,确保卷积结果与实测结果一致。实验结果证明该涡流补偿方法可以应用于实际探矿工作中,提高了探测精准度。
To avoid the interference of eddy current caused by the metallic part of TEM system,the eddy current is calculated by convolution and eliminated so that the real signal is obtained.This paper introduces the principal of TEM,describes the form of eddy current and analyses the influence of it on TEM system.In this paper,an equipment was established to measure the transfer function,the convolution was proved effective.Since,this method can be applied on minerals prospecting to improve the accuracy.
作者
荣亮亮
包苏新
董丙元
裴易峰
伍俊
邱隆清
宋正威
RONG Liangliang;BAO Suxin;DONG Bingyuan;PEI Yifeng;WU Jun;QIU Longqin;SONG Zhengwei(State Key Laboratory of Materials for Informatics,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China;Center of Excellence in Superconducting Electronics(CENSE),Chinses Academy of Sciences,Shanghai 200050,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《传感技术学报》
CAS
CSCD
北大核心
2019年第10期1483-1486,共4页
Chinese Journal of Sensors and Actuators
基金
中国科学院关键技术人才项目
上海市科委科研计划项目(17511103300)
