【摘要】 在介质阻挡放电系统中首次发现了带线六边形斑图.利用高速照相机和光电倍增管对斑图的时空结构和时间相关性进行测量，发现该斑图是由带线六边形内的中心点、带线六边形上的点及线和带线六边形内晕3套子结构组成，分别将其记作C(center),V(vertex)+L(line),H(halo),放电全部发生在电压上升沿.利用2个光电倍增管同时对V、L处进行测量，发现二者都在第2个电流脉冲放电且放电顺序随机.利用高速录像机拍摄曝光时间为50μs放电照片，发现L是由随机放电丝组成.利用壁电荷理论解释带线六边形斑图的时空结构及形成机制.更多还原

【Abstract】 Pattern of hexagon with line has been found for the first time in dielectric barrier discharge system. An intensified charge-coupled device camera and photomultiplier tubes were used to investigate the spatiotemporal structure and temporal correlation of the luminescent pattern. It is found that the luminescent pattern is composed of three sets of substructures: the center point in the hexagon, the point on the hexagon; the line between two points of the hexagon and the halo of the hexagon. Let’s call them C(center), V(vertex)+L(line), H(halo). All of their discharges occur at the rising edge of the voltage. The optical signals at V and L were measured by two photomultiplier tubes simultaneously.It is found that both of their discharge in the second current pulse are random. Photos with exposure time of 50 μs were taken by high speed video camera, the results show that L is composed of random filaments. The wall charge theory is used to explain the spatiotemporal structure and the formation mechanism of pattern of hexagon with line.更多还原