螺旋针-环结构等离子体射流放电过程分析

doi:10.19595/j.cnki.1000-6753.tces.170145

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Abstract To reduce the breakdown and maintenance voltages of the gas discharge, a plasma jet device with spiral needle-ring electrodes was designed. The discharge voltage and current waveforms under different voltages were studied. It is shown that helium plasma jet discharge can be divided into three stages, including corona discharge, dielectric barrier discharge and plasma jet discharge, which can be distinguished according to the characteristics of the discharge voltage and current waveforms. The spiral needle-ring structure can reduce the average gas gap distance between electrodes, thereby reducing the breakdown and maintenance voltages of the gas discharge, making the discharge easier. Residual charge in the process of the voltage reverse increases the synthetic electric field, so that the discharge is easier to start. Due to the asymmetric electrode structure, gas is more prone to discharge in the positive half cycle. The discharge eventually develops to filamentary discharge as the applied voltage increases.

Key words： Spiral needle-ring electrodes atmospheric pressure plasma jet voltage and current waveforms

Received: 14 February 2017 Published: 30 October 2017

PACS:	TM835
	TP60

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	Articles by authors
	Zhang Ruobing
	Han Qianting
	Li Shuang
	Liu Hui

Cite this article:

Zhang Ruobing,Han Qianting,Li Shuang等. Discharge Process Analysis of Plasma Jet with Spiral Needle-Ring Electrode[J]. Transactions of China Electrotechnical Society, 2017, 32(20): 90-96.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170145 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I20/90

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