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介质阻挡放电复杂同心圆环斑图的研究

DOI: 10.13336/j.1003-6520.hve.2015.09.005, PP. 2856-2861

Keywords: 介质阻挡放电,高速照相机,复杂同心圆环斑图,时空结构,壁电荷,子结构

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Abstract:

为了研究复杂同心圆环斑图的时空结构,采用水电极介质阻挡放电装置,在氩气和空气的混合气体中进行放电实验,并使用高速照相机对其进行拍摄研究。实验发现该斑图在每半个电压周期内有3个电流脉冲段,其中2个脉冲位于电压的上升沿,1个位于其下降沿。利用高速照相机以每个电流脉冲段为曝光时间,对复杂同心圆环斑图的时空结构进行了研究,发现斑图是由小点、环和中心点构成的3套同心圆环子结构组成。依据以上实验结果的分析,发现壁电荷和放电丝之间的活化禁阻作用影响复杂同心圆环斑图的时空结构以及其中环的形成。

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