Fluctuation-Coupling of Cathode Cavity Pressure and Arc Voltage in a dc Plasma Torch with a Long Inter-Electrode Channel at Reduced Pressure

	Fluctuation-Coupling of Cathode Cavity Pressure and Arc Voltage in a dc Plasma Torch with a Long Inter-Electrode Channel at Reduced Pressure
	Cao JW; Huang HJ(黄河激); Pan WX(潘文霞); Huang, HJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Source Publication	Chinese Physics Letters
	2014-11
Volume	31 Issue:11 Pages:115202
ISSN	0256-307X
Abstract	Fluctuations of cathode cavity pressure and arc voltage are observed experimentally in a dc plasma torch with a long inter-electrode channel. The results show that they have the same frequency of around 4 kHz under typical experimental conditions. The observed phase difference between the pressure and the voltage, which is influenced by the path length between the pressure sensor and the cathode cavity, varies with different input powers. Combined with numerical simulation, the position of the pressure perturbation origin is estimated, and the results show that it is located at 0.01-0.05m upstream of the inter-electrode channel outlet.
Subject Area	Physics
URL	查看原文
Indexed By	SCI ; CSCD
Language	英语
WOS ID	WOS:000345156300027
Funding Organization	Supported by the National Natural Science Foundation of China under Grant No 11175226.
Department	LHD应用等离子体力学(CPCR)
Classification	Q3
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/49439
Collection	高温气体动力学国家重点实验室
Corresponding Author	Huang, HJ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Recommended Citation GB/T 7714	Cao JW,Huang HJ,Pan WX,et al. Fluctuation-Coupling of Cathode Cavity Pressure and Arc Voltage in a dc Plasma Torch with a Long Inter-Electrode Channel at Reduced Pressure[J]. Chinese Physics Letters,2014,31(11):115202.
APA	Cao JW,黄河激,潘文霞,&Huang, HJ .(2014).Fluctuation-Coupling of Cathode Cavity Pressure and Arc Voltage in a dc Plasma Torch with a Long Inter-Electrode Channel at Reduced Pressure.Chinese Physics Letters,31(11),115202.
MLA	Cao JW,et al."Fluctuation-Coupling of Cathode Cavity Pressure and Arc Voltage in a dc Plasma Torch with a Long Inter-Electrode Channel at Reduced Pressure".Chinese Physics Letters 31.11(2014):115202.

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