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中文摘要：
利用介质阻挡放电实验系统测量了空气介质阻挡放电的发射光谱,研究了氩气含量对空气介质阻挡放电发射光谱的影响。在280~500 nm波长范围内,发现了氮分子第二正带系N2（C3Πu-B3Πg）的谱线和氮分子离子的第一负带系N2＋（B3Σu＋-X2Σg＋）的谱线。在相同条件下加入10%氩气后,起始放电电压由26kV降低到23 kV,介质阻挡放电和发射光谱强度都增强,谱线的半宽明显加大。随氩气含量的增加,各个氮分子第二正带系谱线强度的变化趋势不同,而两条氮分子离子第一负带系谱线391.44和427.81 nm的光谱强度都是降低的。
英文摘要：
The emission spectra of air dielectric barrier discharge were measured through dielectric barrier discharge experiment system,and the influence of argon fraction on the emission spectra of air dielectric barrier discharge was studied in the present paper.In the wavelength range of 280~500 nm,the second positive band system of nitrogen N2（C 3Πu-B 3Πg） and the first negative band system of nitrogen ion N＋2（B 3Σ＋u-X 2Σ＋g） were found.Adding 10% argon under the same conditions,initial discharge voltage reduced from 26 to 23 kV,both dielectric barrier discharge and its emission spectra intensity were enhanced,and the full width at half maximum increased.With increasing argon fraction,the trends of each nitrogen second positive band system line were different and two nitrogen ion first negative band system lines（391.44 and 427.81 nm） were reduced.
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