【作者】 董丽芳； 李树锋； 刘富成； 刘峰； 刘书华；

【Author】 DONG Li-fang LI Shu-feng LIU Fu-cheng LIU Feng LIU Shu-hua (College of Physics Science and Technology,Hebei University,Baoding,Hebei 071002,China)

【机构】 河北大学物理科学与技术学院；

【摘要】 研究了介质阻挡放电中放电特性随气体流量的变化.结果表明,击穿电压、放电的空间分布、电流波形等均随气体流量的改变而改变.击穿电压在静态气体中最高,随气体流量的增加呈现复杂行为;放电的空间分布在气体流量增加过程中由类四边形斑图转变为均匀的类辉光放电,最后出现局部的条纹斑图;而此过程中电流的脉冲数则先减小后增加.实验发现,存在一个适当的气体流量,使得击穿电压出现最低值,放电区呈现均匀的类辉光放电.更多还原

【Abstract】 The variation of the discharge characteristics in dielectric barrier discharge with gas flow isinvestigated.It is found that the breakdown voltage,the spatial discharge distribution and thewaveforms of current all change with the gas flow.The breakdown voltage appears in static gas is thehighest.As the gas flow increasing,the breakdown voltage exhibits complex behaviour and the spatialdischarge distribution undergoes transitions square lattice pattern-glowlike state-stripe pattern in localdischarge domain.The number of pulse in the current waveform decreases firstly and then increaseswith increasing gas flow.At certain gas flow,the breakdown voltage has the lowest value and thedischarge domain presents a glowlike state.更多还原