Similarity of gas discharge in low-pressure argon gaps between two plane-parallel electrodes

被引:29
作者
Fu, Yangyang [1 ]
Yang, Shuo [1 ]
Zou, Xiaobing [1 ]
Luo, Haiyun [1 ]
Wang, Xinxin [1 ]
机构
[1] Tsinghua Univ, Dept Elect Engn, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
GLOW-DISCHARGE; PASCHENS LAW; BREAKDOWN; NEON; FIELD;
D O I
10.1049/hve.2016.0017
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The similarity of gas discharge in low-pressure argon gaps between two plane-parallel electrodes was investigated by experiments, numerical simulations and theoretical analysis. It was found by the experiments that the breakdown voltages depend not only on the product of gas pressure and gap length, but also on the aspect ratio of the gap, i.e. U-b = f (pd, d/r). It was theoretically proved that U-b = f (pd, d/r) is also a special case, the non-uniform electric field between plane-parallel electrodes, of similarity theorem of gas discharge. It was found by the experiments that there exist similar glow discharges only in two gaps with a limited scaled-down factor k. By theoretical analysis, it was explained that the forbidden processes such as the stepwise ionisation and the inelastic collision of the second kind violate the similarity of discharge as k increases, which was verified by the numerical simulations of the discharges with or without these two forbidden processes taken into account.
引用
收藏
页码:86 / 89
页数:4
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