Improving far-infrared laser measurements of mhd plasma electron density and conductivity

Mitsuharu Masuda, Yukio Watanabe, Tomoaki Ikegami, Masanori Akazaki, Hironori Nakamuta

研究成果: ジャーナルへの寄稿学術誌査読

抄録

Electron density and electrical conductivity are among the most important parameters governing performance of an MHD power generator. The far-infrared laser has offered a powerful diagnostic tool for measuring these quantities. However, clarifying the effects of the neutral gases and the laser beam refraction will improve accuracy. In the present paper, the variable-wavelength far-infrared laser was used to address these effects. In electron density measurement with a Michelson interferometer, the definite fringe shift due to neutral gases in the flame was detected, and the effects of neutral gases, especially the rotational absorption of water vapor, were quantitatively clarified. A method involving integrating beam intensity profiles is also suggested to account for the beam refraction effect of the conductivity measurements. The electron density and conductivity measured with corrections for these effects agree very well with theoretical calculations.

本文言語英語
ページ(範囲)68-72
ページ数5
ジャーナルJournal of Propulsion and Power
4
1
DOI
出版ステータス出版済み - 1988
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 航空宇宙工学
  • 燃料技術
  • 機械工学
  • 宇宙惑星科学

フィンガープリント

「Improving far-infrared laser measurements of mhd plasma electron density and conductivity」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル