Particle Sizing with Inline Laser Holography using an Ultraviolet Laser

DOI Web Site 5 References
  • MASUDA Mitsuharu
    "Dept. Energy and Environmental Eng., Graduate School of Engineering Sciences, Kyushu University"
  • YANO Hidenobu
    "Dept. Energy and Environmental Eng., Graduate School of Engineering Sciences, Kyushu University"
  • AOKI Toshiyuki
    "Dept. Energy and Environmental Eng., Graduate School of Engineering Sciences, Kyushu University"
  • MATSUO Kazuyasu
    "Dept. Energy and Environmental Eng., Graduate School of Engineering Sciences, Kyushu University"

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Other Title
  • B114 紫外レーザーを用いたインラインホログラフィ法による微粒子計測
  • シガイ レーザー オ モチイタ インライン ホログラフィホウ ニヨル ビリュウ

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Abstract

The breakup process of a liquid drop plays an important role in the various engineering problems such as the gas atomization for the production of fine metal power, the ink jet printer and the fuel injector of the Diesel engine. The detailed mechanism of the breakup of liquid drops, however, is not well understood. In the present research, the diagnostic system based on the inline laser holography is constructed to clarify this process. This method determines the size and location of a small particle by comparing the hologram pattern obtained by the experiments with that by the theory. The method is proposed that uses the ultraviolet laser as a light source of the holography system. The distance between the target particles and the hologram plane can be made longer by using the light with a shorter wavelength. This will give a particular advantage to the practical applications in avoiding the holographic film or the lens system being wet by the droplets.

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