摘要
为了分析电缆受外界电磁脉冲作用产生的感应电流,开展了屏蔽电缆表面电流辐照测量实验,并进行了理论计算.实验测量系统采用椭圆弧形过渡段有界波模拟器,通过对电流探头进行标定以及探头引入干扰的消除,得到了较好的测试数据.然后利用时域有限差分方法(Finite Difference Time Domain,FDTD)细线模型进行了数值仿真,该模型计算量小、简单易行.对比仿真结果和实测结果,二者吻合较好,证明了辐照测试方法的有效性.
In order to analyze the induced surface current on a cable in electromagnetic pulse(EMP)environment,an irradiation measurement experiment is carried out,and the current is calculated theoretically.A new ellipse-arc transitional section boundedwave simulator is used in the measurement system.The current probe is calibrated,and its disturbance is minimized.Then useful experiment data are obtained.The finite difference time-domain(FDTD)thin wire model is used in numerical simulation,which requires tiny calculating quantities and is easy to achieve.The measured current data conform well to the FDTD results,and the results of simulation proved the validity of the measuring method presented.
出处
《电波科学学报》
EI
CSCD
北大核心
2014年第3期581-585,共5页
Chinese Journal of Radio Science
基金
国家自然科学基金(No.51077133)
2013年江苏省博士后基金资助(1301021C)
关键词
FDTD
有界波模拟器
辐照法
表面电流
FDTD
bounded-wave simulator
irradiation experiment
surface current
