摘要
为了测量脉冲电流注入电缆的时域屏效,采用皮电流I0与短路芯电流Id峰峰值之比的分贝数求解电缆的屏蔽效能方法,给出了某百芯屏蔽电缆的等效电压源内阻和屏蔽效能值,并对外场辐射试验法中的某百芯初样电缆总的屏蔽效果进行了计算和讨论。
In this paper, shielding efficiency of cable is definded as decibel of ratio between skin current and core-current p-p value. The measuring method of current injection is introduced for the shielding efficiency of multi-wire cable. The internal resistance of equivalent voltage source and shielding efficiency are obtained for the cable of a hundred wires. The measuring results of total shielding effect for first sample cable with a hundred wires in external field testing are calculated and discussed.
出处
《信息与电子工程》
2007年第2期150-153,共4页
information and electronic engineering
基金
国防行业重点预先研究资助项目
关键词
屏蔽效能
多芯电缆
电流注入
时域测量方法
shielding efficiency
multi-wires cable
pulse current injecting
time-domain measuring method
