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[1]张 岩,康小录,乔彩霞.钡钨空心阴极放电等离子体特性实验研究[J].火箭推进,2014,40(05):55-60.
　ZHANG Yan,KANG Xiao-lu,QIAO Cai-xia.Experimental investigation for discharge plasma properties of BaW hollow cathode[J].Journal of Rocket Propulsion,2014,40(05):55-60.
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钡钨空心阴极放电等离子体特性实验研究

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 40 期数: 2014年05期 页码: 55-60 栏目: 研究与设计 出版日期: 2014-10-28
Title:
Experimental investigation for discharge plasma properties of BaW hollow cathode
作者:
张 岩; 康小录; 乔彩霞
上海空间推进研究所，上海 201112
Author(s):
ZHANG Yan;  KANG Xiao-lu;  QIAO Cai-xia
Shanghai Institute of Space Propulsion, Shanghai 201112, China
关键词:
电推力器; 钡钨空心阴极; 朗谬尔静电探针; 等离子体特性
分类号:
V439+.2-34
文献标志码:
A
摘要:
心阴极作为电推力器的核心部件之一，其放电等离子体特性对空心阴极的性能和可靠性具有决定性的作用。采用实验的方法，使用朗谬尔静电探针置于钡钨空心阴极放电出口处，诊断和分析了钡钨空心阴极出口处的放电等离子体特性随阴极推进剂流量和放电电流的变化规律，结果表明：阴极推进剂流量和放电电流对空心阴极放电等离子体特性具有比较明显的影响，各等离子体参量随阴极推进剂流量和放电电流均有明显的变化，其中，电子数密度随阴极推进剂流量和放电电流的增大而上升，等离子体电势随阴极推进剂流量和放电电流的增大而下降，电子温度随阴极推进剂流量的增加而下降，随放电电流的增大有略微升高，而且，放电电流对放电等离子体特性具有更显著的影响。
Abstract:
As a key part of electric thruster, its hollow cathode discharge plasma properties decide its performance and reliability. In the experiments, a Langmuir Probe was placed at the BaW hollow cathode orifice to diagnose and analyze the variation of discharge plasma properties at the BaW hollow cathode orifice with the propellant flow and discharge current. The experiment results show that the propellant flow and discharge current have an obvious effect on discharge plasma properties, and each plasma parameter has an obvious change with the propellant flow and discharge current. Concretely speaking, the electron density increases with the increase of propellant flow and discharge current, the plasma potential decreases with the increase of propellant flow and discharge current, and the electron temperature reduces with the increase of propellant flow but increases a little bit

参考文献/References:

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备注/Memo

收稿日期：2014-04-08；修回日期：2014-05-29 基金项目：中国航天科技集团公司支撑项目（2009JY12） 作者简介：张岩（1988—），男，工学硕士，研究领域为空间电推进技术

更新日期/Last Update: 1900-01-01