雷电电磁场理论计算与模拟技术研究
Theoretical Calculation and Experimental Simulation for Lightning Electromagnetic
Field
摘要 为研究雷电电磁脉冲场对电子设备的电磁损伤机理和防护加固技术,在雷电电磁脉冲场理论计算的基础上,采用冲击电压发生器与GTEM室相结合,研制了雷电电磁环境模拟系统,其电场强度可高达400kV/m。通过改变模拟器的波头和波尾电阻,可方便地改变电磁脉冲场的前沿时间和半值时间,满足对各种雷电电磁环境模拟的需要。
关键词 雷电 电磁场 模拟 计算 GTEM室
Abstract For the purpose of studying the protective reinforcement technology and
electromagnetic damage mechanism of the electronic equipment induced by LEMP field,
on the foundation of theoretical calculation of LEMP radiation field, the lighting
electromagnetic environment simulator has been designed using impulse voltage
enerator and GTEM Cell. It can produce and transport the lightning electromagnetic
wave that the peak strength of electric field is high about 400kv/m. It is conveniently
to change the rise time and half-width time of the LEMP by changing the wave-front
resistance and wave-tail resistance, so that the simulator can simulate different kinds
of LEMP waves.
Keywords lightning, electromagnetic field, calculate, GTEM cell