Abstract:The optical emission spectra of Ar/air dielectric barrier discharge (DBD) scanned from 300-800 nm near atmospheric pressure were obtained. Electron excitation temperature (Texc) and molecule vibrational temperature (Tv) in Ar/air DBD at the middle value of pressure-distance (pd) product (about 6.4×103 Pa·cm) were studied. The ArI 763.51 nm(2P6→1S5) and 772.42 nm(2P2→1S3) lines were chosen to estimate Texc. Tv was measured by the N2 second positive band (C3Πu→B3Πg). It was found that Texc and Tv increase with increasing applied voltage. And the varying rate of Texc with increasing voltage is bigger than that of Tv.
Key words:Dielectric barrier discharge;Middle value of pd;Electron excitation temperature;Molecule vibrational temperature
董丽芳,齐玉妍,高瑞玲,刘峰,李雪辰. 中等pd值介质阻挡放电中等离子体温度研究[J]. 光谱学与光谱分析, 2007, 27(11): 2175-2177.
DONG Li-fang, QI Yu-yan, GAO Rui-ling, LIU Feng, LI Xue-chen. Study on Plasma Temperature in Dielectric Barrier Discharge at the Middle Value of pd. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(11): 2175-2177.