摘要
低地轨道中存在大量的具有强氧化性的原子氧环境,原子氧与表面材料会发生复杂的物理、化学反应,造成材料的剥蚀和性能的退化,更严重的会导致飞行任务的失效。目前,对低地球轨道的原子氧效应已开展了较为深入的研究,从各种数值模拟及软件仿真、地面模拟试验和空间探测手段等方面都有了较为深刻的认识。其中,采用真空原子氧辐射实验设备进行地面原子氧试验模拟,开展航天用电线电缆真空原子氧辐照试验技术研究是现行较为合适的研究方法。这其中真空原子氧辐射实验设备在每次实验前均需要校准和标定,通过将所测得的设备通量数值与行业标准所给的数值作比较,调节测试系统的各项参数,以达到对设备校准的目的。
There are a lot of strong oxidizing atomic oxygen environment in low earth orbit.Atomic oxygen and surface materials will have complex physical and chemical reactions,which will cause material erosion and performance degradation,and even more serious will lead to mission failure.At present,the in-depth research has been carried out on the atomic oxygen effect in low earth orbit,and profound understanding has been obtained from various numerical simulation and software simulation,ground simulation test and space exploration means.Among them,it is a more appropriate research method to simulate the ground atomic oxygen test by using the vacuum atomic oxygen radiation experimental equipment,and to carry out the research on the vacuum atomic oxygen radiation test technology for aerospace wires and cables.The vacuum atomic oxygen radiation experimental equipment needs to be calibrated before each experiment.By comparing the measured equipment flux value with the industrial standard value,the parameters of the test system can be adjusted to achieve the purpose of equipment calibration.
作者
刘石
雷军
张弛
LIU Shi;LEI Jun;ZHANG Chi(CEPREI,Guangzhou 511370,China)
出处
《电子产品可靠性与环境试验》
2021年第S01期111-113,共3页
Electronic Product Reliability and Environmental Testing
关键词
原子氧
辐照试验
真空
现状
发展趋势
atomic oxygen
radiation test
vacuum
current situation
development trend
