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. Lets 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- DOI:10.3969/j.issn.1000-1565.2022.02.006介质阻挡放电中带线六边形斑图王玥1,潘宇扬2,李耀华1,李彩霞3,赵薇2,付少铎2(1.河北大学 物理科学与技术学院,河北 保定 071002;2.河北大学 质量技术监督学院, 河北 保定 071002;3.河北大学 电子信息工程学院,河北 保定 071002)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50 μs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.关键词:斑图;介质阻挡放电;六边形结构;壁电荷 中图分类号:O43 文献标志码:A 文章编号:1000-1565(2022)02-0144-06Pattern of hexagon with line in dielectric barrier dischargeWANG Yue1, PAN Yuyang2, LI Yaohua1, LI Caixia3, ZHAO Wei2,FU Shaoduo2(1. College of Physics Science and Technology, Hebei University, Baoding 071002, China;2. College of Quality and Technical Supervision, Hebei University, Baoding 071002, China;3.College of Electronic Information Engineering, Hebei University, Baoding 071002, China)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. Lets 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- 收稿日期:2021-03-22 基金项目:国家自然科学基金资助项目(12075075);河北省科技计划项目(A2020201016);河北大学大学生创新项目(2021373) 第一作者:王玥(1997—),女,河北唐山人,河北大学在读硕士研究生,主要从事非线性介质阻挡放电斑图研究. E-mail:478722914@qq.com 通信作者:潘宇扬(1989—),女,河北保定人,河北大学副教授,主要从事光学及测量控制等方面研究.E-mail: Pyy1616@163.com第2期王玥等:介质阻挡放电中带线六边形斑图is used to explain the spatiotemporal structure and the formation mechanism of pattern of hexagon with line.
WANG Yue
,
PAN Yuyang
,
LI Yaohua
,
LI Caixia
,
ZHAO Wei
,
FU Shaoduo
. Pattern of hexagon with line in dielectric barrier discharge[J]. Journal of Hebei University(Natural Science Edition), 2022
, 42(2)
: 144
-149
.
DOI: 10.3969/j.issn.1000-1565.2022.02.006
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