Trapping of micrometer size bubbles by ultrasonic waves

被引：16

作者：

Yamakoshi, Y ^{[1
]}

Koshiba, M ^{[1
]}

Ozawa, Y ^{[1
]}

Masuda, N ^{[1
]}

机构：

[1] Gunma Univ, Fac Engn, Kiryu, Gumma 3768515, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2001年 / 40卷 / 3A期

关键词：

micro bubbles; manipulation by ultrasonic waves; acoustic radiation force; Bjerknes force; ultrasonic contrast agent; microbubble trapping;

D O I：

10.1143/JJAP.40.1526

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An ultrasonic trapping method of small objects is applied to micrometer size bubbles. The experiments are carried out using an ultrasonic contrast agent of mean diameter 1.3 mum. An ultrasonic focused wave of opposite phase with frequency 5 MHz is applied to produce sequential traps for the microbubble flow. It is found that the microbubbles aggregate forming large masses of bubbles which are trapped inside the ultrasonic wave field. The effects of viscosity of the surrounding liquid are also examined.

引用

页码：1526 / 1527

页数：2

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