Translation of an Object Using Phase-Controlled Sound Sources in Acoustic Levitation

Autor: Matsui, Takayasu, Ohdaira, Etsuzo, Masuzawa, Nobuyoshi, Masao Ide, Masao Ide
Zdroj: Japanese Journal of Applied Physics; May 1995, Vol. 34 Issue: 5 p2771-2771, 1p
Abstrakt: Acoustic levitation is used for positioning materials in the development of new materials in space where there is no gravity. This technique is applicable to materials for which electromagnetic force cannot be used. If the levitation point of the materials can be controlled freely in this application, possibilities of new applications will be extended. In this paper we report on an experimental study on controlling the levitation point of the object in an acoustic levitation system. The system fabricated and tested in this study has two sound sources with vibrating plates facing each other. Translation of the object can be achieved by controlling the phase of the energizing electrical signal for one of the sound sources. It was found that the levitation point can be moved smoothly in proportion to the phase difference between the vibrating plates.
Databáze: Supplemental Index