Ultrasonic trapping of small particles by a vibrating rod

Author

Liu, Yanyan ; Hu, Junhui

Author_Institution

Nanyang Technol. Univ., Singapore

Volume

56

Issue

4

fYear

2009

fDate

4/1/2009 12:00:00 AM

Firstpage

798

Lastpage

805

Abstract

In this paper, the ultrasonic trapping of small particles by a vibrating rod is proposed and analyzed. An aluminum rod, which is driven by an actuator and operates in the 0th order vibration mode (back and forth vibration mode), can trap small particles in water. The experimental phenomena and the trapping mechanism are theoretically analyzed, and the acoustic radiation force acting on a spherical particle near the surface of the vibrating rod is estimated. The effects of operating frequency, rod radius, particle radius and other physical parameters are investigated experimentally and theoretically, and useful guidelines to optimize the trapping capability are proposed.

Keywords

actuators; aluminium; rods (structures); ultrasonic applications; vibrations; 0th order vibration mode; acoustic radiation force; actuator; aluminum rod; operating frequency; particle radius; rod radius; ultrasonic small particles trapping; vibrating rod; Drag; Electron traps; Frequency; Near-field radiation pattern; Particle measurements; Petroleum; Resonance; Surface acoustic waves; Viscosity; Voltage; Computer Simulation; Computer-Aided Design; Equipment Design; Micromanipulation; Models, Theoretical; Particle Size; Sonication; Vibration;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2009.1102

Filename

4815309