WS1-2 フェムト秒レーザー加工した光ファイバープローブによる微小気泡・液滴の径と速度の同時計測(2)(EFDワークショップ:マイクロ・ナノバブル流れの最先端技術-気泡の発生・挙動・応用-,ワークショップ)

概要

論文の詳細を見る
An optical fibre has interesting and useful characteristics, which are able to be applied to scientific measurement. Its Phase detection characteristic based on refraction difference between two phases was applied to bubbles/droplets measurement. Recently, demands for measurement of tiny bubbles/droplets increase in research fields of spray, automotive engine, fine chemistry, and so on. Meanwhile, laser science and engineering has made remarkable advances lately. Since femtosecond lasers spread in industry fields, their unique properties can be easily utilized for processing and measurement. In the present paper, a newly developed single-tip optical fiber probe processed using femtosecond laser is described, and its capability for simultaneous measurement of velocities and diameters of bubbles/droplets is discussed in consideration of surface tension and wettability of gas-liquid two-phase system.
一般社団法人日本機械学会の論文
2007-11-17