不同磁场对低气压中孔阳极放电等离子体参数的影响  

Effects of Different Magnetic Fields on Plasma Parameters of Low Pressure Mesoporous Anode Discharge

作　　者：高深 方俊康 蔡纪鹤 Gao Shen;Fang Jun-kang;Cai Ji-he

机构地区：[1]常州工学院电气信息工程学院,江苏常州213032

出　　处：《电力系统装备》2022年第4期81-83,共3页Electric Power System Equipment

基　　金：江苏高校文化创意协同创新中心基金项目(XYN1914)。

摘　　要：利用自行设计的空心阴极放电装置,研究了磁场对辉光等离子体参数的影响,得到了不同磁场强度下空心阴极辉光放电的击穿电压与气压、伏安特性的关系,以及不同磁场条件下等离子体密度的空间分布。结果表明,在相同压力下,磁场能有效降低击穿电压,提高辉光放电电流。在低气压和弱磁场条件下,只有在一定的电压范围内才能产生辉光等离子体。随着磁场或压力的增大,电压阈值逐渐增大。对于中孔阳极型的辉光放电,从阴极到阳极,等离子体密度的轴向分布逐渐增大。Using a self-designed hollow cathode discharge device,the influence of magnetic field on the parameters of glow plasma was studied,and the relationship between the breakdown voltage,gas pressure and volt-ampere characteristics of hollow cathode glow discharge under different magnetic field strengths,and the relationship between different magnetic fields were obtained.Spatial distribution of plasma density under conditions.The results show that the magnetic field can effectively reduce the breakdown voltage and increase the glow discharge current under the same pressure.Under the condition of low gas pressure and weak magnetic field,glow plasma can be generated only within a certain voltage range.As the magnetic field or pressure increases,the voltage threshold gradually increases.For mesoporous anode type glow discharge,the axial distribution of plasma density increases gradually from cathode to anode.

关 键 词：辉光放电 等离子体密度 击穿电压 低气压 磁场 

分 类 号：O461.21[理学—电子物理学]