介质阻挡放电中白眼超点阵同心圆环发光斑图  

White Eyes Superlattice Concentric Ring Luminescent Pattern in Dielectric Barrier Discharge

作　　者：郭丽婷 董丽芳[1] 王朝阳 孙浩洋 于广林 李彩霞 范伟丽[1] GUO Li-ting;DONG Li-fang;WANG Zhao-yang;SUN Hao-yang;YU Guang-lin;LI Cai-xia;FAN Wei-li(College of Physics and Technology,Hebei University,Baoding 071002,China)

机构地区：[1]河北大学物理科学与技术学院

出　　处：《发光学报》2019年第10期1311-1317,共7页Chinese Journal of Luminescence

基　　金：国家自然科学基金(11875014);河北省应用基础研究计划重点基础研究项目(15961105D)资助~~

摘　　要：在介质阻挡放电系统中首次发现了白眼超点阵同心圆环发光斑图。采用光电倍增管和高速照相机等仪器对该斑图的时空动力学进行研究,结果显示该斑图由奇数圈的点阵圆环和偶数圈的白眼圆环嵌套而成。将奇数圈的点阵记作O(Odd number,O),偶数圈的白眼中心点记作E(Even number,E),白眼晕记作H(Halo,H)。O在电压上升沿的第一个脉冲全部放电且在电压下降沿部分放电,H在电压上升沿的包络处放电,E在电压下降沿放电。用两个光电倍增管对O和E的时间相关性进行研究,实验结果表明O与E在电压下降沿的放电顺序随机。用高速录像机拍摄的瞬时照片表明该斑图的每个体放电都伴随着沿面放电。H在奇数圈的随机放电导致了部分O在电压下降沿的放电,沿面放电对壁电荷的重排作用导致了O与E放电顺序的随机性。The white eyes superlattice concentric ring luminescent pattern is observed in the dielectric barrier discharge for the first time.Its spatiotemporal structure is investigated by using photomultiplier tubes and an intensified charge-coupled device camera.The results show that the pattern is composed by odd-numbered rings and even-numbered white-eye rings.The dots of odd rings are denoted as filaments O(Odd number,O),the center dots of white eyes in the even rings are denoted as filaments E(Even number,E),and the white halo is denoted as H(Halo,H).All filaments O discharges at the first pulse of the rising edge of the voltage and partially O discharges at the falling edge of the voltage,H discharges at the current envelope of the rising edge of voltage,E discharges at the falling edge of the voltage.The time correlation measurement of O and E shows that the discharge sequences of O and E are random at the falling of voltage edge.A high-speed video camera was used to take pictures and the result shows that each volume discharges in this pattern induce surface discharges.The H in the odd number rings causes the discharge of partial filament O at the falling edge of the voltage.The rearrangement of the wall charges by the surface discharges results in the randomness of the O and E discharge sequences.

关 键 词：发光斑图 介质阻挡放电 沿面放电 壁电荷 

分 类 号：O461[理学—电子物理学]