航天推进技术研究院主办
FENG Jie,WANG Yanlong,LIU Mingzheng,et al.Experimental research on discharge characteristics of plasma contactor[J].Journal of Rocket Propulsion,2019,45(03):81-86.
等离子体接触器放电特性试验研究
- Title:
- Experimental research on discharge characteristics of plasma contactor
- 文章编号:
- 1672-9374(2019)03-0081-06
- Keywords:
- plasma contactor; volt-ampere characteristics; positive resistance characteristic; negative resistance characteristic
- 分类号:
- V439
- 文献标志码:
- A
- 摘要:
- 为了研究等离子体接触器的伏安特性,设计试验分别测试了单支和双支等离子体接触器工作时的伏安特性,并给出了等离子体接触器钳位电压、偏置电压以及触持电压随偏置电流的变化规律。试验结果表明:供气流率的提升有利于接触器放电效率的改进; 等离子体接触器钳位电压、触持电压与偏置电流之间呈现出不同的规律,前者呈现为正阻特性,后者呈现为负阻特性; 两支等离子体接触器同时工作时相互之间存在影响,额定值为5 A时,两支接触器的发射电流分别为8 A和2 A,因此采用双接触器同时工作时,应尽量采用伏安特性接近的阴极以减小差异性。
- Abstract:
- In order to study the volt-ampere characteristics of plasma contactor, an experiment was designed and conducted to test the volt-ampere characteristics of single and double plasma contactors.In addition, the variation of the clamp voltage, bias voltage and contact voltage of the plasma contactor with the bias current is given.The test results show that the increase of the air supply rate is beneficial to the improvement of discharge efficiency.There is a different law between the clamp voltage, the keeper voltage and the bias current of the plasma contactor.The former shows positive resistance characteristic, while the later shows negative resistance characteristic.Two plasma contactors affect each other while working simultaneously.When the rated value is 5 A, the emission currents of two contactors are 8 A and 2 A, respectively.Therefore, when using double contactors at the same time, the volt-ampere characteristics should be adopted as close as possible to reduce the difference.
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备注/Memo
收稿日期:2018-03-05
基金项目:载人航天预研项目(YZR0702)
作者简介:冯 杰(1988—),男,硕士,工程师,研究领域为空间电推进