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Please use this identifier to cite or link to this item: http://hdl.handle.net/10087/2700

Title: N_2^+1-バンドを用いた空気マイクロプラズマジェットの温度計測
Other Titles: Temperature Measurements of Micro-air Plasma-jets by N_2^+1- Bands
Authors: 久保田, 聖
舩津, 賢人
白井, 紘行
高草木, 文雄
Keywords: Plasma
Jet
Spectroscopic Measurement
Non-equilibrium
Supersonic Flow
Shock Wave
Low-pressure Micro-air Plasma-jet
Spectral Matching Method
Issue Date: 25-Mar-2006
Publisher: 日本機械学会
Citation: 日本機械学會論文集 B編. 72(715), 628-633 (2006)
Abstract: Spectroscopic measurements of micro-air plasma-jets generated at low pressures were performed at several points on flow axis, using a spectrometer in the wavelength region of 200 to 900 nm. The N_22+ bands and N_2^+1- bands were predominant in the region of 280 to 480nm, and atomic lines of N and O in the visible and infrared regions. Temperatures of the plasma-jets were estimated by applying a spectral matching method to N_2^+1- bands along a flow axis for low-pressure conditions. Rotational temperatures for N_2^+1- bands were 6000 to 7000K, and vibrational temperatures 25000 to 28000K, almost independent of pressures and axial positions. It was found that the rotational temperatures measured had great difference from the gas temperature based upon an empirical formula for supersonic free jets, and also the vibrational temperatures were much higher than those expected.
URI: http://hdl.handle.net/10087/2700
ISSN: 0387-5016
Appears in Collections:学術雑誌論文

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