High Voltage Frame and Differential Charging Observed on a Geosynchronous Spacecraft
High Voltage Frame and Differential Charging Observed on a Geosynchronous Spacecraft
复制标题
地球同步航天器上观测到的高压框架和差分充电
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
E. Mullen
中科院分区：
文献类型：
--
作者：
B. Dichter;K. Ray;M. Gussenhoven;E. Holeman;D. Delorey;E. Mullen
自 1995 年 8 月以来，我们一直在研究地球同步卫星上的框架和差分充电的频率和水平。使用表面电位监测器 (SPM) 对两个典型的航天器表面（Kapton 和 Astroquartz）测量了高压差分充电。使用离子静电分析仪测定框架充电。此外，还测量了20至50 keV之间的积分电子布居数。统计研究包括三年期间的框架收费和差别收费。我们还解决了使用自主充电控制系统 (CCS) 降低充电水平的问题。当高通量电子撞击航天器时，CCS 会释放氙等离子体，以帮助提供电流平衡。充电事件的案例研究将重点关注识别负责充电的人群、电流平衡问题以及 SPM 和离子分析仪观察到的充电水平差异。
We have studied the frequency and levels of frame and differential charging on a geosynchronous satellite since August of 1995. High voltage differential charging was measured with Surface Potential Monitors (SPM) for two typical spacecraft surfaces (Kapton and Astroquartz). Frame charging was determined using an ion electrostatic analyzer. In addition, the integrated electron population between 20 and 50 keV was also measured. The statistical study includes frame and differential charging over a three-year period. We also address the ability to reduce the charging levels using an autonomous Charge Control System (CCS). The CCS releases a Xenon plasma to help provide current balance when high fluxes of electrons impinge on the spacecraft. A case study of a charging event will focus on identifying the population responsible for charging, current balance issues and differences in charging levels as observed by the SPM and the ion analyzer.