介质阻挡放电中体放电和沿面放电的光谱线形研究  

Study on Spectral Line Profile of Volume Discharge and Surface Discharge in Dielectric Barrier Discharge

作　　者：董丽芳[1] 赵龙虎[1] 王永杰[1] 高烨楠 

机构地区：[1]河北大学物理科学与技术学院,河北保定071002

出　　处：《光谱学与光谱分析》2014年第2期308-311,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(11175054);教育部博士点基金项目(20101301110001);河北省科技厅重点项目(11967135D);河北省教育厅重点项目(ZD2010140)资助

摘　　要：在放电间隙较大的介质阻挡放电中,利用高速照相机,同时观察到了体放电(VD)和沿面放电(SD)。采用光谱法,研究了VD和SD的光谱线形随放电参数的变化。在氩气介质阻挡放电中,测量了VD和SD的ArⅠ(2P2→1S5)谱线展宽和频移随气压及放电间隙的变化。结果发现:SD的展宽和频移均比VD的大,说明SD的电子密度高于VD的电子密度;随着压强从40kPa增大到60kPa,VD和SD的谱线展宽及频移均增加,表明它们的电子密度均随压强的增大而升高;随着d值从3.8mm增大到4.4mm,VD和SD的谱线展宽也增加,反映它们的电子密度均随d值的增大而增加。The volume discharge （VD） and surface discharge （SD） were observed in dielectric barrier discharge with a relatively large discharge gap simultaneously by using a high-speed camera .The variations of the spectral line profiles of VD and SD as a function of the discharge parameters were studied by using optical emission spectra .The changes in the width and shift of Ar Ⅰ（2P2 →1S5）spectral lines of VD and SD with gas pressure and discharge gap were measured in dielectric barrier discharge in ar-gon .It was found that both the width and shift of SD are bigger than those of VD ,indicating that the electron density of SD is higher than that of VD .The width and shift of VD and SD increase with the gas pressure increasing ,indicating that the electron density of VD and SD increases with the gas pressure increasing .The width of VD and SD increases with the gas gap d increas-ing from 3.8 to 4.4 mm ,reflecting that the electron density of VD and SD increases with d increasing .

关 键 词：介质阻挡放电 体放电 沿面放电 谱线展宽 谱线频移 

分 类 号：O461.2[理学—电子物理学] O433.4[理学—物理]