Ultrasonic trapping of small particles by a vibrating rod

Author

Liu, Yanyan ; Hu, Junhui

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore

fYear

2008

fDate

2-5 Nov. 2008

Firstpage

631

Lastpage

634

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

acoustic streaming; aluminium; nonlinear acoustics; radiation pressure; rods (structures); structural acoustics; ultrasonic applications; vibrations; Al; acoustic radiation force; actuator; operating frequency effects; trapping capability optimization; ultrasonic particle trapping; vibrating aluminum rod; zeroth order vibration mode; Acoustic measurements; Actuators; Aluminum; Electron traps; Frequency; Guidelines; Resonance; Ultrasonic transducers; Vibration measurement; Voltage; acoustic; radiation force; small particles; ultrasonic trapping; vibrating rod;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2008. IUS 2008. IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4244-2428-3

Electronic_ISBN

978-1-4244-2480-1

Type

conf

DOI

10.1109/ULTSYM.2008.0151

Filename

4803192