Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Development of an Acoustic Levitation Linear Transportation System Based on a Ring-Type Structure

Full text
Author(s):
Thomas, Gilles P. L. ; Andrade, Marco A. B. ; Adamowski, Julio Cezar ; Nelli Silva, Emilio Carlos
Total Authors: 4
Document type: Journal article
Source: IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL; v. 64, n. 5, p. 839-846, MAY 2017.
Web of Science Citations: 5
Abstract

A linear acoustic levitation transportation system based on a ring-type vibrator is presented. The system is composed by two 21-kHz Langevin transducers connected to a ring-shaped structure formed by two semicircular sections and two flat plates. In this system, a flexural standing wave is generated along the ring structure, producing an acoustic standing wave between the vibrating ring and a plane reflector located at a distance of approximately a half wavelength from the ring. The acoustic standing wave in air has a series of pressure nodes, where small particles can be levitated and transported. The ring-type transportation system was designed and analyzed by using the finite element method. Additionally, a prototype was built and the acoustic levitation and transport of a small polystyrene particle was demonstrated. (AU)

FAPESP's process: 14/24159-1 - Noncontact particle manipulation by ultrasound
Grantee:Marco Aurélio Brizzotti Andrade
Support Opportunities: Regular Research Grants