613 2時刻ホログラムを用いた位相シフトディジタルホログラフィ粒子計測(G01-1 計算力学(1)有限要素法・メッシュフリー法他,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

抄録

This paper presents a phase-shifting digital holographic method for measuring dynamic phenomenon of fluid flow in three dimensional space. Phase-shifting digital holography usually needs three or four holograms, but the present method uses two holograms captured with a frame straddling technique. Object images are reconstructed from the information of phase-adjusted light amplitude. The measurement accuracy of the present method is evaluated by numerical simulation in comparison with other phase-shifting techniques.