IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2009-05-29 14:00
Noncontact ultrasonic manipulation of small objects for a long distance using a bending vibrator and a reflector
Daisuke Koyama, Kentaro Nakamura (Tokyo Inst. of Tech.) US2009-10
Abstract (in Japanese) (See Japanese page) 
(in English) Ultrasonic manipulation of small particles including a liquid droplet for a long distance is discussed. It is well known that a particle, which is much smaller than a wavelength of acoustic standing wave, can be trapped at the nodal points. The experimental setup consists of a 3-mm-thick and 605-mm-long duralumin bending vibrating plate and a reflector. Two bolt-clamped Langevin type transducers with horns were attached on the both sides of the vibrating plate to generate the flexural vibration along the plate. The plane reflector with the same dimension as the vibrator is installed parallel to the vibrating plate with the distance of approximately 17 mm to generate an ultrasonic standing wave between them and trap the small particles along the nodal lines. The acoustic field and the acoustic radiation force between the plate and reflector were calculated through the finite element analysis (FEA) to predict the trapped position of the particles. The sound pressure distribution was measured experimentally by using a scanning laser Doppler vibrometer. By controlling the driving phase difference between the two transducers, the flexural traveling wave can be generated along the vibrating plate, and the vertical nodal lines of standing wave and the trapped particles can be moved. The flexural wave was excited along the plate at 22.5 kHz. The lattice standing wave with the wavelength of 36 mm in the length direction could be excited between the plate and reflector, and foam polystyrene particles with the radii of several mm could be trapped at the node lines of standing wave. The experimental and calculated results showed a good agreement on the relationship between the driving phase difference and the trapped position of the particles. The noncontact transportation of the trapped particles for a long distance could be achieved by changing the driving phase difference: the trapped position of particles can be controlled as 0.046 mm/deg. An ethanol droplet could be also trapped and moved.
Keyword (in Japanese) (See Japanese page) 
(in English) Noncontact manipulation / Ultrasound / Bending vibration / Lattice standing wave / Droplet / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 68, US2009-10, pp. 13-18, May 2009.
Paper # US2009-10 
Date of Issue 2009-05-22 (US) 
ISSN Print edition: ISSN 0913-5685    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 US2009-10

Conference Information
Committee US  
Conference Date 2009-05-29 - 2009-05-29 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To US 
Conference Code 2009-05-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Noncontact ultrasonic manipulation of small objects for a long distance using a bending vibrator and a reflector 
Sub Title (in English)  
Keyword(1) Noncontact manipulation  
Keyword(2) Ultrasound  
Keyword(3) Bending vibration  
Keyword(4) Lattice standing wave  
Keyword(5) Droplet  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Daisuke Koyama  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Kentaro Nakamura  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2009-05-29 14:00:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2009-10 
Volume (vol) vol.109 
Number (no) no.68 
Page pp.13-18 
#Pages
Date of Issue 2009-05-22 (US) 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan