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常压He气和N₂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

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【Author】 Zhang Yan 1) Gu Biao 2) Wang Wen-Chun 2)3) Peng Xu-Wen 2)3) Wang De-Zhen 2)3) 1)(School of Mechanical and Power Engineering,Henan Polytechnic University,Jiaozuo 454000,China)2)(State Key Laboratory for Materials Modification by Laser,Ion and Electron Beams,Dalian University of Technology,Dalian 116024,China)3)(School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian 116024,China)

【机构】河南理工大学机械与动力工程学院；大连理工大学三束材料改性国家重点实验室；大连理工大学物理与光电工程学院；

【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.更多还原

【Abstract】 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-voltage 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.更多还原