Manipulation of microparticles using phase-controllable ultrasonic standing waves

被引：70

作者：

Courtney, C. R. P. ^{[1
]}

Ong, C. -K. ^{[1
]}

Drinkwater, B. W. ^{[1
]}

Wilcox, P. D. ^{[1
]}

Demore, C. ^{[2
]}

Cochran, S. ^{[2
]}

Glynne-Jones, P. ^{[3
]}

Hill, M. ^{[3
]}

机构：

[1] Univ Bristol, Dept Mech Engn, Bristol BS8 1TR, Avon, England

[2] Univ Dundee, Inst Med Sci & Technol, Sch Engn Phys & Math, Dundee DD2 1FD, Scotland

[3] Univ Southampton, Sch Engn Sci, Southampton SO17 1BJ, Hants, England

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2010年 / 128卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

PARTICLE;

D O I：

10.1121/1.3479976

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A method of manipulating microparticles in a liquid using ultrasound is proposed and demonstrated. An ultrasonic standing wave with nodal planes whose positions are controllable by varying the relative phase of two applied sinusoidal signals is generated using a pair of acoustically matched piezoelectric transducers. The resulting acoustic radiation force is used to trap micron scale particles at a series of arbitrary positions (determined by the relative phase) and then move them in a controlled manner. This method is demonstrated experimentally and 5 mu m polystyrene particles are trapped and moved in one dimension through 140 mu m. (C) 2010 Acoustical Society of America

引用

页码：E195 / E199

页数：5

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