强电磁脉冲对计算机电缆的注入毁伤效应研究

摘要

In this paper,the high electromagnetic pulse (EMP) damage effect of computer cable interfaces is studied.By using the coupling injection method,the electromagnetic pulse damage experiment is performed for VGA video interfaces of circuits with protection and without protection,and the test results of VGA video interfaces are recorded in detail.The results show that the computer cable inter⁃faces have lower threshold of destruction,but with the special EMP protection circuit,the capability of resisting electromagnetic pulse is significantly improved.%为研究强电磁脉冲对计算机系统电缆端口的毁伤效应，通过电磁脉冲耦合注入方式分别对未加装防护电路和加装防护电路的VGA视频端口进行电磁脉冲毁伤试验，详细记录了VGA视频端口的测试结果。通过试验数据表明，计算机电缆接口的毁伤阈值相对较低，而增加专用的电磁脉冲接口抑制电路后，计算机视频电缆接口的抗强电磁脉冲打击能力明显提高。