摘要
采用液体电极装置,首次在空气介质阻挡放电中观察到了清晰分辨的氮分子离子第一负带(0,0)转动谱。根据转动光谱的强度分布,确定转动能级上粒子最大布居数位置,估算了氮分子离子的转动温度。改变外加电压和放电气体的气压,研究了转动温度的变化,发现当气压在10.133~60.795 kPa范围时,随电压的增加,谱线强度增加,但其转动光谱的强度分布不变,说明转动温度保持不变。上述结果对于空气介质阻挡放电理论模型的建立及工业应用均具有重要的参考价值。
The rotational lines of the first negative band system of N2^＋ were observed in air dielectric barrier discharge by using liquid electrodes. The rotational temperature was estimated by the J number of the lines with the maximum intensity in rotational spectrum. The rotational temperature was kept at a constant with increasing the applied voltage when the gas pressure was in the range of 10. 133-60. 795 kPa. The results are of great importance to the model foundation and the application of dielectric barrier discharge in air.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2007年第12期2406-2408,共3页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(10575027
10375015)
教育部高等学校博士学科点专项科研基金项目(20050075001)
河北省自然科学基金项目(A2006000950和A2004000086)资助
关键词
介质阻挡放电
转动温度
光谱诊断
Dielectric barrier discharge
Rotational temperature
Spectroscopic diagnosis
