摘要
针对微型射频离子推力器研制过程中击穿困难的问题,开展了低气压细管感应耦合等离子源(ICPs)的击穿特性实验研究.通过对放电腔室内等离子体击穿区域的研究,发现低气压细管ICPs击穿位置不在电场最强的天线区域,即天线的击穿区域与射频离子推力器稳定工作的等离子体维持区域不在同一区域,这造成了传统射频离子推力器结构下击穿点火的困难.通过改变放电腔室结构与天线位置研究击穿工况变化规律,发现延长放电腔室长度,适当增加天线匝数,调整天线与放电腔室相对位置都可以改善上述现象.
This article focuses on the difficulty of plasma breakdown during the development of a micro-RF ion thruster.Experimental research is conducted on the breakdown characteristics of a low-pressure narrow-tube inductively coupled plasma source(ICP)using simple present and simple past tenses.The plasma breakdown area in the discharge chamber was studied,and it is found that the breakdown location of the low-pressure narrow-tube ICPs is not in the antenna area where the electric field is strongest.That is,the breakdown area of the antenna is not in the same area as the plasma maintenance area where the RF ion thruster operates stably,making it difficult to ignite the breakdown using the traditional RF ion thruster structure.Simple present and simple past tenses are used to discuss the results of changes made to the structure of the discharge chamber and the position of the antenna to study the variation of the breakdown conditions.It is found that the above phenomenon can be improved by extending the length of the discharge chamber,increasing the number of antenna turns appropriately,and adjusting the relative position between the antenna and the discharge chamber.
作者
吴延龙
艾亮
一鸣
常悦
张越
孙斌
WU Yanlong;AI Liang;YI Ming;CHANG Yue;ZHANG Yue;SUN Bin(China Academy of Space Technology,Beijing 100094;Key Laboratory of Advanced Technology for Aerospace Vehicles,Liaoning Province,Dalian 116024;State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024)
出处
《空间控制技术与应用》
CSCD
北大核心
2023年第2期116-122,共7页
Aerospace Control and Application
基金
国家自然科学基金资助项目(12275044)
国家重点研发计划资助项目(2020YFC2201104)。
