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Non-contact transportation system of small objects using Ultrasonic Waveguides

Non-contact transportation system of small objects using Ultrasonic Waveguides

Authors :
Kentaro Nakamura
Daisuke Koyama
Source :
IOP Conference Series: Materials Science and Engineering. 42(1)
Publication Year :
2012

Abstract

A transportation system for small object or fluid without contact is investigated being based on ultrasonic levitation. Small objects are suspended against gravity at the nodal points in ultrasonic pressure field due to the sound radiation force generated as the gradient of the energy density of the field. In this study, the trapped object is transported in the horizontal plane by introducing the spatial shift of the standing waves by the switching the lateral modes or travelling waves. The goal of the study is to establish a technology which can provide a total system with the flexibility in composing various transportation paths. Methods for linear/rotary stepping motions and continuous linear transportation are explained in this report. All the transportation tracks are composed of a bending vibrator and a reflector. The design for these acoustic cavity/waveguide is discussed.

Details

Language :
English
Volume :
42
Issue :
1
Database :
OpenAIRE
Journal :
IOP Conference Series: Materials Science and Engineering
Accession number :
edsair.doi.dedup.....795da18dbb2c09f3a417a181a6c0a26d