Speed of streamers in argon over a flat surface of a dielectric
Speed of streamers in argon over a flat surface of a dielectric
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DOI：
10.1088/0022-3727/42/1/015211
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发表时间：
2009-01
期刊：
影响因子：
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通讯作者：
A. Sobota;A. Lebouvier;N. Kramer;E. van Veldhuizen;W. Stoffels;F. Manders;M. Haverlag
中科院分区：
文献类型：
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作者：
A. Sobota;A. Lebouvier;N. Kramer;E. van Veldhuizen;W. Stoffels;F. Manders;M. Haverlag
采用针-针电极结构，研究了在平坦介质表面和介质附近气体中的流光速度。实验在氩气气氛中，在0.1至1巴的压力下，用重复的电压脉冲进行。电介质表面在放电点火和传播过程中起着不可忽视的作用。放电的平均速度随气压的升高和电压脉冲上升率的降低而降低。当电极之间的导电通道形成在电介质上而不是通过气体时，它更高。空间分辨的测量结果显示，当它向接地电极移动时，放电速度增加。
A pin–pin electrode geometry was used to study the velocities of streamers propagating over a flat dielectric surface and in gas close to the dielectric. The experiments were done in an argon atmosphere, at pressures from 0.1 to 1 bar, with repetitive voltage pulses. The dielectric surface played a noticeable role in discharge ignition and propagation. The average speed of the discharge decreased with higher pressure and lower voltage pulse rise rate. It was higher when the conductive channel between the electrodes was formed over the dielectric, rather than through the gas. Space resolved measurements revealed an increase in velocity of the discharge as it travelled towards the grounded electrode.