卫星表面充电是七十年代初发现的严重危害同步轨道卫星的新问题。为了寻求解决卫星表面充电问题的方法,许多国家进行了广泛的研究。我们于82年开展卫星表面充电模拟试验技术研究。本文仅就我们在磁层亚暴环境模拟设备设计中考虑的一些问题作简要介绍。阐述了对模拟系统的要求,模拟系统的组成和用途,介绍了真空系统,电子枪,光源和测量系统设计中应考虑的问题。 Surface satellite charging was a new problem that was seriously jeopardized by satellites in the early 1970s. Many countries have conducted extensive research in search of ways to solve the problem of satellite surface charging. We conducted a satellite surface charge simulation test in 82 years. This article only briefs on some of the issues we consider in the design of magnetospheric sub-ambient simulation equipment. Describes the requirements of the simulation system, the composition and purpose of the simulation system, and introduces the issues to be considered in the design of the vacuum system, electron gun, light source and measurement system.