An atmospheric pressure plasma with a nozzle of 2 mm × 10 mm using air as the working gas is reported based on a rotating high voltage electrode. The plasma is driven by direct current (DC) voltage and ignited when the rotating anode approaches the fixed cathode. Then it is stretched with the rotation of the anode and blown into open space by air flow. High speed photographs show that the plasma is a U-shape like discharge channel. A 100 mH inductor is used to suppress the surge current when the gap is broken down. The peak value of the surge current reduces from about 8.5 A when no inductor is used to about 0.31 A when the inductor is used. After the plasma is ignited, for the case where a 100 mH inductor is used, the average electric field stays at about 1.5 kV cm −1 during the main discharge period, and the plasma is in a glow mode discharge. After ignition, the voltage across the discharge gap increases with time with several fluctuations. High speed photographs sh...

中文翻译：

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基于旋转电极的大气压非平衡开放空间空气等离子体

基于旋转的高压电极，报道了使用空气作为工作气体的，具有2mm×10mm的喷嘴的大气压等离子体。等离子体由直流（DC）电压驱动，并在旋转阳极接近固定阴极时被点燃。然后随着阳极的旋转而拉伸，并通过气流吹入开放空间。高速照片显示，等离子体为U形的放电通道。当间隙被击穿时，使用100 mH电感器来抑制浪涌电流。浪涌电流的峰值从不使用电感器时的约8.5 A降低到使用电感器时的约0.31A。点燃等离子体后，对于使用100 mH电感器的情况，在主放电期间平均电场保持在1.5 kV cm -1左右，并且等离子体处于辉光模式放电。点火后，放电间隙两端的电压会随着时间的推移而增加，并有一些波动。高速摄影机