微小空间碎片撞击诱发放电效应研究

微小空间碎片超高速撞击航天器表面, 能够抛射出高密度的等离子体云团, 如果撞击发生在航天器的高充电表面或带电部件等敏感区域, 撞击等离子体将会诱发放电, 该机制已经引起了广泛的关注, 但是相关研究还十分欠缺. 本文利用等离子体驱动微小碎片加速器加速200 μm的微粒, 通过模拟实验开展微小空间碎片撞击诱发放电的研究, 获得了典型的实验结果, 对撞击诱发放电信号的特征进行了分析. 关键词： 微小空间碎片 撞击诱发放电

Research of small space debris impact induced discharge

Small space debris impact the surface of spacecraft frequently at a velocity of about 10 km/s, thereby creating plasma cloud clusters during the impact. If the impact happens in the area with high voltage, then the plasma can induce discharge. This mechanism of spacecraft discharging has been widely accepted but research about it is rare. In this paper we present the experimental results of 200 micron glass ball particles impact induced discharge carried out on a plasma drag small space debris accelerator. The experimental results and characteristics of the discharging signals are also analyzed in this paper.
Keywords： small space debris impact inducing discharge