Title :
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
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;
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
DOI :
10.1109/ULTSYM.2008.0151
