1002 小型集束超音波キャビテーション発生装置における音場の可視化と圧力測定(GS-2,5 キャビテーション・気泡,研究発表講演)

概要

論文の詳細を見る
Small focusing ultrasonic cavitation generators were devised. We tested two kinds of piezoelectric ceramics as an acoustic generator. The radius of curvature of the ceramics are taken to be 8mm and 5.77mm. We measured pressure in the ultrasonic field near the focus and visualized the ultrasonic field with the schlieren method. We investigated the influence of the radius of curvature on the focusing of acoustic waves. It is shown that the acoustic pressure amplitude is larger in the generator with the small radius of curvature for initial transient state. However, better focusing is achieved in the generator with the large radius of curvature for the quasi-steady state where standing waves are formed around the focus.
一般社団法人日本機械学会の論文
2005-03-18