静电电磁脉冲辐射场诱发针-球电极结构放电试验

针对当前国内外诱发静电放电（ESD）研究较少的实际情况，为了解自然环境下静电放电辐射场诱发放电的基本特性，进一步分析诱发放电的特征规律，建立了大气条件下诱发放电试验系统。主要采取理论分析、试验验证的方式，对静电放电辐射场诱发针-球电极结构放电的基本规律进行摸索，初步得出了诱发放电的基本规律。研究结果表明：在外界条件一定的情况下，随着辐射场强的不断增大，放电重复频率不断增大；在辐射场强一定的情况下，随着高压源电压的不断增大，诱发放电重复频率不断增大；在外界环境条件一定的情况下，能够确定该条件下的诱发放电唯一阈值。这些试验规律的取得，为真空条件下的诱发放电特性研究提供了试验方法和理论依据，对开展航天器运行环境中的诱发放电研究和防护方法设计具有重要意义。

Electrostatic electromagnetic pulse radiation field induced needle-sphere electrode structural discharge test

In view of the fact that there are few researches on induced electrostatic discharge at home and abroad, in order to understand the basic characteristics of Electro Static Discharqi (ESD) induced by radiation field in natural environment and further analyze the characteristics of ESD induced by radiation field, an experimental system of ESD induced by atmosphere was established. In this paper, by means of theoretical analysis and experimental verification, the basic rules of needle-sphere electrode structure discharge induced by ESD radiation field are explored, and the basic rules of induced discharge are preliminarily obtained. The results show that the repetition frequency of the induced discharge increases with the increase of radiation field while controlling the external conditions; the repetition frequency of the induced discharge increases with the increase of voltage of high voltage source when controlling the radiation field intensity; and the unique threshold of induced discharge when controlling the external environment conditions can be determined. These experimental rules provide experimental methods and theoretical basis for studying the induced discharge characteristics under vacuum conditions, and are of great significance for the study of induced discharge in spacecraft operating environment and the design of protection methods.