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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
Thomas, Gilles P. L. ; Andrade, Marco A. B. ; Adamowski, Julio Cezar ; Nelli Silva, Emilio Carlos
Número total de Autores: 4
Tipo de documento: Artigo Científico
Fonte: IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL; v. 64, n. 5, p. 839-846, MAY 2017.
Citações Web of Science: 5
Resumo

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)

Processo FAPESP: 14/24159-1 - Manipulação sem contato de partículas utilizando ultrassom
Beneficiário:Marco Aurélio Brizzotti Andrade
Linha de fomento: Auxílio à Pesquisa - Regular