电热火工品感应电流与连续电磁波频率的关系

Relationship between Continuous Electromagnetic Wave Frequency and EED Induced Current

电热火工品电磁波环境下的响应效应与规律性是开展电磁安全性研究及环境适应性设计的基础。为了得到影响电热火工品电磁响应的重要参数与规律,用实验室建立的连续电磁波环境模拟系统与感应电流测试装置,研究了电热火工品电磁波环境下感应电流与频率间的关系。结果表明,电热火工品感应电流与电磁波频率间存在谐振关系。以火工品垂直脚线状态为例,其脚线长度为0.72 m时,对应感应电流谐振频率约为200 MHz。在此基础上开展的理论计算与仿真研究,证实了火工品脚线的天线特性是影响其电磁响应的关键因素。电热火工品在其脚线长度对应的谐振频率点处感应电流值最大。

The response effect and rule of an electro-explosive device（EED） in an electromagnetic wave environment are the basis of research on electromagnetic safety and environmental adaptability design. To get the response rules and some important parameters affecting the EED response~ the relationship between the induced current and frequency in the electromagnetic environment of electro- explosive device was studied by using a continuous electromagnetic wave environment simulation system and an induced current testing device established in the laboratory. Results show that there is a resonance relation between the induced current and the electromag- netic wave frequency of EED. Taking EED vertical leg wire state as a sample~ when the length of EED leg wire is 072 mm,corre- sponding induced current resonance frequency is about 200 MHz. The theoretical calculation and simulation study performed on the basis of these results prove that the artenna characteristics of EED leg wire are the key factors that affect the electromagnetic response. The maximum induced current is at the resonance frequency point corresponding to the length of EED leg wire.