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中文摘要：
在氩气/空气的混合气体介质阻挡放电中,首次在高温条件下观察到亮点和暗点共存的放电,比较了中心亮点及四周暗点放电的谱线频移,并测量了它们的振动温度。实验采用氩原子ArⅠ（2P2→1S5）的发射谱线测量谱线频移,采用氮分子第二正带系（C3Πu→B3Πg）的发射谱线测量振动温度。结果表明：中心亮点放电中的ArⅠ（2P2→1S5）谱线的频移大于四周的暗点放电谱线的频移,表明前者电子密度较高;四周的暗点的放电振动温度高于中心亮点放电的振动温度。
英文摘要：
The emission spectrum line shift and vibrational temperature of the bright dot and dark dot discharges,which are observed in the argon and air dielectric barrier discharge at high temperature for the first time were measured and compared.The line shift of the spectral line of the ArⅠ（2P2→1S5）is measured and the vibrational temperature was calculated using by the emission spectral lines of the N2 second positive band system（C3Πu→B3Πg）.The results show that the spectrum line shift of the bright dot discharge channel is larger than that of the dark dot channel,which indicates that the former has higher electron density compared to the latter,and the vibrational temperature of the dark dot discharge channel is higher than that of the bright dot discharge channel.
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