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基于瞬变电磁阵列的地下金属定位系统设计

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针对近地表不同形状金属目标定位的需求,设计了基于瞬变电磁(TEM)阵列技术的地下金属目标定位系统.该系统利用阵列传感器各接收线圈采集的感应电动势衰减曲线的差值,得到地下目标的信号响应特性,通过对比实测环境下标签信号的感应电动势幅值,可以得到目标的水平方位和垂直埋深,实现对地下金属目标的定位功能.实验结果表明:设计的系统能够区分球形、矩形和圆柱形目标的水平方位,垂直埋深测量误差在8%以下,可以实现较好的定位效果.
Design of underground metal positioning system based on transient electromagnetic array
Aiming at localization needs of different shapes of near-ground surface metal targets,an underground metal target localization system based on transient electromagnetic(TEM)array technology is designed.The system uses the difference of the induced electromotive force attenuation curve collected by each receiving coil of the array sensor to obtain the signal response characteristics of the underground target.By comparing the induced electromotive force amplitude of the label signal in the measured environment,the horizontal orientation and vertical buried depth of the target can be obtained,and the positioning function of the underground metal target can be realized.The experimental results show that the designed system can distinguish the horizontal orientation of spherical,rectangular and cylindrical targets,and the measurement error of vertical buried depth is less than 8%,which can achieve a better positioning effect.

transient electromagnetic(TEM)array coil structurevoltage decay curvemetal target localization

康良伟、边瑞卿、董浩森、张永杰、李凯

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中北大学信息与通信工程学院,山西太原 030051

瞬变电磁 阵列线圈结构 电压衰减曲线 金属目标定位

中央引导地方科技发展资金资助项目山西重点研发计划资助项目山西省科技成果转化引导专项项目山西省基础研究计划资助项目

YDZJSX20231A02520220201010100720220402130104420210302123058

2024

10.13873/J.1000-9787(2024)02-0093-04

传感器与微系统
中国电子科技集团公司第四十九研究所

传感器与微系统

CSTPCD北大核心
影响因子：0.61
ISSN：1000-9787
年,卷(期)：2024.43(2)
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