| Excited Electron Temperature and Molecular Vibration Temperature During Transition from Filamentary Discharge to Glow Discharge in Surface Discharge in Air |
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| 作者姓名： | 李雪辰 李立春 董丽芳 |
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| 作者单位： | College of Physics Science ＆ Technology, Hebei University, Baoding 071002, China |
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| 基金项目： | supported by the National Natural Science Foundation of China （Nos. 10375015, 10575027） and supported in part by the Natural Science Foundation of Hebei University |
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| 摘 要： | A dielectric barrier surface discharge device was used to investigate the transition from a filamentary discharge to a glow discharge in air at different gas pressures. Discharge images and waveforms of the applied voltage and discharge current were recorded simultaneously, and it was found that the discharge could transit from filamentary to glow with the decrease in pressure. Optical emission spectra during the transition from a filamentary discharge to a glow one were recorded. Excited electron temperature can be determined from the ratios of the relative intensities of spectral lines while molecular vibration temperature can be measured by analysing spectral lines of the N2 second positive band system. The results show that both the excited temperature and molecular vibration temperature increase with the decrease in the gas pressure. Qualitative explanations are given.
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| 关 键 词： | 电介质阻碍物界面流量 发光 放电 光学发射光谱 |
| 修稿时间： | 2006-07-19 |
Excited Electron Temperature and Molecular Vibration Temperature During Transition from Filamentary Discharge to Glow Discharge in Surface Discharge in Air |
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| LI Xuechen , LI Lichun DONG Lifang.Excited Electron Temperature and Molecular Vibration Temperature During Transition from Filamentary Discharge to Glow Discharge in Surface Discharge in Air[J].Plasma Science & Technology,2007,9(4):448-451. |
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| Authors: | LI Xuechen LI Lichun DONG Lifang |
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| Affiliation: | [1]College of Physics Science & Technology, Hebei University, Baoding 071002, China |
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| Abstract: | A dielectric barrier surface discharge device was used to investigate the transition from a filamentary discharge to a glow discharge in air at different gas pressures. Discharge images and waveforms of the applied voltage and discharge current were recorded simultaneously, and it was found that the discharge could transit from filamentary to glow with the decrease in pressure. Optical emission spectra during the transition from a filamentary discharge to a glow one were recorded. Excited electron temperature can be determined from the ratios of the relative intensities of spectral lines while molecular vibration temperature can be measured by analysing spectral lines of the N2 second positive band system. The results show that both the excited temperature and molecular vibration temperature increase with the decrease in the gas pressure. Qualitative explanations are given. |
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| Keywords: | dielectric barrier surface discharge glow discharge optical emission spectrum |
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