Journal
ULTRASONICS
Volume 38, Issue 1-8, Pages 26-32Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0041-624X(99)00052-9
Keywords
acoustic levitation; high power ultrasonics; industrial ultrasonics; radiation pressure; ultrasonic actuator
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Near-held acoustic levitation, where planar objects 10 kg in weight can levitate stably near the vibrating plate, is successfully applied both to non-contact transportation of objects and to a non-contact ultrasonic motor. Transporting apparatuses and an ultrasonic motor have been fabricated and their characteristics measured. The theory of near-field acoustic levitation both for a piston-like sound source and a flexural vibration source is also briefly described. (C) 2000 Elsevier Science B.V. All rights reserved.
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