航天器环境工程2024，Vol.41Issue(4)：445-449,5.DOI:10.12126/see.2023164
离子推力器电参数对真空度及工质流率的敏感特性实验研究
Experimental study on the sensitivity of ion thruster's electrical parameters to vacuum degree and working fluid flow rate
摘要
Abstract
To investigate the factors that affect the ground testing consistency of the LIPS-200 ion thruster and to better understand its working mechanism,the influence of vacuum degree and working fluid flow rate on the electrical parameters of the LIPS-200 ion thruster was studied experimentally to obtain its sensitivity to vacuum degree and working fluid flow rate variation.The results show that when the vacuum degree changes from 2×10-3 Pa to 1×10-2 Pa,the variation of beam current is about 1.7%of the rated beam current,whereas the acceleration current increases by three times.When the neutralizer flow rate is changed,the beam current and anode voltage remain almost unchanged.The anode voltage decreases when the anode and the main cathode working fluid flow rate are increased.The beam current gradually increases with the increasing anode working fluid flow rate,while decreases with the increasing main cathode working fluid flow rate.The results may serve as a reference to improve the consistency of ground testing and to optimize the settings of working conditions for ion thruster experiments.关键词
离子推力器/真空度/工质流率/电参数/实验研究Key words
ion thruster/vacuum degree/working fluid flow rate/electrical parameters/experimental study分类
数理科学引用本文复制引用
李贺,祁小峰,张宏,陈新伟,颜能文,郑茂繁,刘超..离子推力器电参数对真空度及工质流率的敏感特性实验研究[J].航天器环境工程,2024,41(4):445-449,5.基金项目
甘肃省自然科学基金项目(编号:22JR5RA785,23JRRA1354,23JRRA1361) （编号:22JR5RA785,23JRRA1354,23JRRA1361）
真空技术与物理重点实验室基金项目(编号:HTKJ2022KL510003) （编号:HTKJ2022KL510003）
