常压He气和N_2气均匀介质阻挡放电的伏安特性  

Current-voltage relationship for homogeneous dielectric barrier discharge in helium and nitrogen at atmospheric pressure

作　　者：张燕[1] 顾彪[2] 王文春[2,3] 彭许文[2,3] 王德真[2,3] 

机构地区：[1]河南理工大学机械与动力工程学院,焦作454000 [2]大连理工大学三束材料改性国家重点实验室,大连116024 [3]大连理工大学物理与光电工程学院,大连116024

出　　处：《物理学报》2009年第8期5532-5538,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10575019;10075010;50537020)资助的课题~~

摘　　要：对带有多电流峰的常压He气均匀介质阻挡放电与常压N2气均匀介质阻挡放电的伏安特性进行了实验分析.分析结果表明:实验结果与模拟结果相符.在带有多电流峰的常压He均匀介质阻挡放电中,辉光放电模式和汤森放电模式可以共存于一个多电流放电序列内.此外,在放电电流增长阶段,可以根据常压均匀介质阻挡放电的伏安特性曲线的微分电导来判断均匀介质阻挡放电的放电模式.在放电电流增长阶段,如果电流脉冲的伏安特性曲线呈现负微分电导,则电流脉冲为辉光放电模式;如果呈现正微分电导,则为汤森放电模式.由此可以判断,常压N2气均匀介质阻挡放电为汤森放电模式.The experimental investigation of the current-voltage relationship of homogeneous dielectric barrier discharge （HDBD） was performed in helium and nitrogen at atmospheric pressure, respectively. The experiment results agree with the simulation results. The glow diacharge mode （GDM） and Townsend discharge mode （TDM） can coexist in one multiple current peak （MCP） discharge sequence in atmospheric He MCP discharge. Moreover, the discharge modes of atmospheric HDBD can be discriminated according to the differential conductivity of the current-vohage relationship in the ascent stage of discharge current, in which the current pulse is GDM if the differential conductivity of the current-voltage relationship is negative, and it is TDM if the differential conductivity is positive. Thus we concluded that, the atmospheric N2 HDBD is TDM.

关 键 词：伏安特性 辉光放电模式 汤森放电模式 常压均匀介质阻挡放电 

分 类 号：O461.21[理学—电子物理学]