核电磁脉冲对单片机系统的辐照效应研究

核爆炸产生的电磁脉冲的“杀伤”范围极广,它可使距离爆心投影点几千公里的电气设备、电子装备和系统的工作失灵甚至破坏。为了研究它对单片机的各种效应,利用GTEM室产生的模拟核电磁脉冲,对单片机系统进行了辐照效应实验。实验表明,单片机系统在核电磁脉冲作用下,会出现“死机”、重启动、控制状态的改变、通讯错误和外部RAM内容改变以及数据采集误差增大等现象。在实验基础上,研究了单片机系统的各种效应产生的原因。

Study on Irradiation Effects of Nuclear Electromagnetic Pulse to Single Chip Computer System

Nuclear electromagnetic pulse can disturb and destroy single chip system. In order to study the effects of nuclear electromagnetic pulse to single chip, we made the irradiation effect experiments by simulative nuclear electromagnetic pulse pro-duced by GTEM Chamber . The experiments show that restarting and breakdown, communication error, interior and exterior RAM' s data change and error increasing of the A/D transform would occur when single chip is acted by the nuclear electromag-netic pulse. Based on the experiments, the cause of the effects of the single chip computer system is studied.