一种基于差分接收的电磁感应阵列探头的设计与实现

doi:10.11720/wtyht.2022.1036

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Abstract

This study proposes an EMI array sensor based on differential reception, which can effectively improve the comprehensive performance of the EMI system on a vehicle or robot in terms of soil adaptability, positioning accuracy, and anti-interference ability. The EMI array sensor consists of a large transmitting coil and multiple receiving coils, which are horizontally arranged in the transmitting coil. Meanwhile, the receiving coils are a kind of double-D coils to realize differential reception. In this manner, the detection efficiency of unexploded ordnances (UXO) can be effectively improved using the EMI array sensor. The simulated minefield detection test results show that the array sensor proposed in this study can be used for UXO detection and positioning.

Key words： EMI detection differential reception array sensor double-D coil UXO detection

Received: 19 January 2021 Published: 25 February 2022

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	Articles by authors
	Yan-Min WU
	Zheng-Hui PENG
	Yong-Hu YUAN
	Jin-Xiang ZHU
	Chuang LIU
	Wei GE
	Guo-Ping LING

Cite this article:

Yan-Min WU,Zheng-Hui PENG,Yong-Hu YUAN, et al. An EMI array sensor based on differential reception[J]. Geophysical and Geochemical Exploration, 2022, 46(1): 214-220.

URL:

https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2022.1036 OR https://www.wutanyuhuatan.com/EN/Y2022/V46/I1/214

Principle block diagram of EMI system

Emission sequence diagram of multi-periods and bipolar pulses

Principle block diagram of six receiving channel

Planar structure of EMI array sensor

Structure diagram of transmitting coil

Structure diagram of double-D receiving coil

Algorithm flow chart

Response curve of array sensor detecting metal target

Principal feature extraction

Major area identification

Type 72 AT Mine

Minefield layout

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