线缆耦合对地雷WB-HPM辐照效应试验影响分析

Analysis on the Influence of External Wire Coupling on WB-HPM Irradiation Effect Test of Mine

高功率微波主要通过后门耦合对地雷造成损伤,而引入外接线缆会影响耦合到地雷内部感应电流测试数据的准确性。本文通过仿真分析得到了宽谱高功率微波(WB-HPM)作用在线缆上的感应电流与不同场强、入射角、线缆半径等之间的规律,并使用屏蔽盒对地雷上的外接线缆进行防护,比较分析了屏蔽前后线缆上的感应电流以及对地雷内部场强的影响,屏蔽后的感应电流峰值为1.8mA,屏蔽接地后地雷内部场强与未加屏蔽盒时相差仅8.6%。因此可采用接地完好的屏蔽盒对外接线缆进行防护,并为后续开展地雷辐照效应试验奠定了基础。

High power microwave mainly damages mines through backdoor coupling.The use of external wires will negatively affect the measurement accuracy of the induced current inside mines caused by coupling.In this paper,the rule of induced current in wires caused by wide band high power microwave(WB-HPM)changing with field intensity,incident angle,and radius of wire is obtained through simulation analysis at first.In addition,a shielding box is used to isolate the external wire of the mine,and the influence of the shielding box on the induced current in the external wire and internal field intensity of the mine is analyzed.After the well-grounded shielding box is used,peak value of the induced current in the external wire is 1.8mA,and the internal field intensity of the mine changes by only 8.6%.Therefore,it is effective to use a well-grounded shielding box to isolate the external wire.This paper lays a foundation for future mine irradiation effect test.