Comparative Investigation of the Discharge Characteristics of a Single Needle Jet and Needle-Plate Jet
LI Xue-chen, CHANG Yuan-yuan*, JIA Peng-ying, ZHAO Huan-huan, LIU Run-fu, DI Cong
Key Laboratory of Photo-Electronics Information Materials of Hebei Province, College of Physics Science and Technology, Hebei University, Baoding 071002, China
Abstract：In the present paper, discharge characteristics were studied in atmospheric pressure argon by a single needle jet and needle-plate jet through combination of optical measurement and electrical one. Results show that the length and cross-sectional area of the plasmas generated in the two jets increase with increasing the peak value of the applied voltage. The cross-sectional area generated by needle-plate jet is bigger than that of the single needle jet at the same voltage. A lower inception voltage is needed for the needle-plate jet compared with the single needle jet at the same Up. Through the spectra emitted from the two jets, electron temperature and vibration temperature wee compared for the plasmas generated by the single needle jet and needle-plate jet, respectively. It can be found that the electron temperature and the vibrational temperature of the two jets increase with increasing Up. The needle-plate jet has higher values of electron temperature and vibrational temperature than the single needle jet at the same Up. These results have significant values for the industrial application of the atmospheric pressure plasma jet.
Key words：Plasma jet;Emission spectrum;Electron temperature;Vibration temperature
李雪辰，常媛媛*，贾鹏英，赵欢欢，刘润甫，狄 聪 . 单针与针-板喷枪放电特性的比较研究 [J]. 光谱学与光谱分析, 2013, 33(04): 926-929.
LI Xue-chen, CHANG Yuan-yuan*, JIA Peng-ying, ZHAO Huan-huan, LIU Run-fu, DI Cong . Comparative Investigation of the Discharge Characteristics of a Single Needle Jet and Needle-Plate Jet . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(04): 926-929.
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