大気圧空気マイクロプラズマジェットの分光学的測定(流体工学,流体機械)

概要

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A micro-air plasma-jet, whose size was 3.0mm in length and about 0.7mm in diameter, was measured spectroscopically in the wavelength region of 200 to 900nm using a spectrometer. The N_2 2+ and N^+_2 1- bands were predominant in the region of 280 to 500nm and intense atomic lines of N and O in the infrared region. Temperatures of the plasma-jet were determined by applying a spectral matching method to those band spectra. There was a very good agreement between the theoretical and experimental spectra in the main part of the measured wavelength region. It was found that the rotational temperature was 7,000 to 9.000K depending on the band, vibrational temperature about 28,000K for both the bands, and the jet was remarkably in thermal non-equilib-rium state.
社団法人日本機械学会の論文
2005-07-25