一种新型未爆弹探测传感器的仿真研究  

Simulation Research on a New Type of Unexploded Ordnance Detection Sensor

作　　者：薄瑞 张志杰[1] 陈昊泽 BO Rui;ZHANG Zhijie;CHEN Haoze(Key Laboratory of Instrument Science&Dynamic Measurement(North University of China),Ministry of Education,Taiyuan Shanxi 030051,China)

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《传感技术学报》2022年第2期171-178,共8页Chinese Journal of Sensors and Actuators

摘　　要：位于地表和近地表的未爆弹通常种类多,分布情况复杂,危险性高,这严重阻碍了土地的开发和利用。在实际探测中未爆弹所产生的二次场十分微弱,探测困难,有效信息较少。针对此情况,设计了一种基于频域电磁法的新型未爆弹探测传感器,其激励线圈与接收线圈剩余耦合低,具有较好的灵敏度和稳定性。对此电磁传感器进行了有限元分析,结果表明,该传感器可以对不同深度的未爆弹进行精确的水平方向定位,并且可以对深度1.5 m以内的目标实现准确的竖直方向定位。实验表明传感器对1.6m深的目标有着清晰的响应,同时验证了竖直定位方法的可行性。There are usually many kinds of unexploded ordnance located in the shallow ground or underground area,which are complex in distribution and dangerous,which hinder the development and utilization of land.The secondary field produced by unexploded bomb is very weak in the actual detection process,which makes detection difficult and obtains less effective information.In view of this situation,a new unexploded ordnance detection sensor based on frequency domain electromagnetic method is designed,which has low residual coupling between excitation coil and receiving coil,and has good sensitivity and stability.The application simulation of the electromagnetic sensor shows that the sensor can accurately locate the unexploded ordnance at different depths in the horizontal direction,and can locate the target within the range of 1.5 m in the vertical direction.Experiments have shown that the sensor has a clear response to the target with a depth of 1.6 m,and verified the feasibility of the vertical positioning method.

关 键 词：未爆弹 频域电磁法 剩余耦合 电磁传感器 有限元分析 

分 类 号：TH763[机械工程—仪器科学与技术]