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Paper Abstract and Keywords
Presentation 2024-06-28 15:25
Effects of changes in the intensity of airborne ultrasound standing waves on the behavior of levitated droplets
Takaya Hirayama, Daisuke Koyama (Doshisha Univ.) US2024-15
Abstract (in Japanese) (See Japanese page) 
(in English) Small objects can be trapped and manipulated by an ultrasound standing wave, and this technique is expected tobe applied to noncontact transportation and measurements of physical properties of liquids. In this report, effects of changes in the intensity of airborne ultrasound standing waves on the behavior of levitated droplets were investigated. The experimental system consists of a vibrating disc with four bolt-clamped Langevin-type transducers and a circular reflector, resulting in an acoustic standing wave between them. The distance between the vibrating disc and reflector was adjusted to maximize the sound
pressure amplitude of the standing wave and trap a droplet without contact. The behavior of the levitated droplets was observed using a high-speed camera with the application of an amplitude-modulated signal to the transducers. It was found that the resonance frequency of the levitated droplet was dependent on the material properties and the droplet, suggesting that this
phenomenon can be applied to measurement techniques of material properties.
Keyword (in Japanese) (See Japanese page) 
(in English) Ultrasound / noncontact manipulation / levitation / droplet / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 91, US2024-15, pp. 43-46, June 2024.
Paper # US2024-15 
Date of Issue 2024-06-21 (US) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF US2024-15

Conference Information
Committee US  
Conference Date 2024-06-28 - 2024-06-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Shiinoki Cultural Complex, Ishikawa Prefecture 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Ultrasound in medicine, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2024-06-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effects of changes in the intensity of airborne ultrasound standing waves on the behavior of levitated droplets 
Sub Title (in English)  
Keyword(1) Ultrasound  
Keyword(2) noncontact manipulation  
Keyword(3) levitation  
Keyword(4) droplet  
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1st Author's Name Takaya Hirayama  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Daisuke Koyama  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2024-06-28 15:25:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2024-15 
Volume (vol) vol.124 
Number (no) no.91 
Page pp.43-46 
#Pages 4 
Date of Issue 2024-06-21 (US) 

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