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Paper Abstract and Keywords
Presentation 2008-09-25 13:30
Measurement model for propagation characteristics of leaky surface acoustic waves by the line-focus-beam ultrasonic material characterization system
Kenji Otsu, Mototaka Arakawa, Jun-ichi Kushibiki (Tohoku Univ.) US2008-32
Abstract (in Japanese) (See Japanese page) 
(in English) The line-focus-beam ultrasonic material characterization system can perform material characterization by accurately measuring the propagation characteristics (viz., phase velocity and attenuation) of leaky surface acoustic waves (LSAWs) excited on the water-loaded specimen surface. In the conventional theoretical calculations, water was treated as an ideal fluid and the shear-wave component was not considered for the boundary
conditions. In this paper, we studied an exact measurement model of LSAW propagation characteristics for synthetic silica glass and borosilicate glass, considering the shear-wave component in the water-loading effect and viscosities of longitudinal and shear waves for both specimen and water. The calculated results for this advanced measurement model exhibit dispersion for both LSAW velocities and normalized attenuation coefficient factors. This is mainly caused by the effect of shear-wave component of water.
Keyword (in Japanese) (See Japanese page) 
(in English) water-loading effect / leaky surface acoustic wave / line-focus-beam ultrasonic material characterization system / shear wave of water / velocity dispersion / attenuation coefficient / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 212, US2008-32, pp. 1-6, Sept. 2008.
Paper # US2008-32 
Date of Issue 2008-09-18 (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)
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Conference Information
Committee US  
Conference Date 2008-09-25 - 2008-09-26 
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 2008-09-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Measurement model for propagation characteristics of leaky surface acoustic waves by the line-focus-beam ultrasonic material characterization system 
Sub Title (in English)  
Keyword(1) water-loading effect  
Keyword(2) leaky surface acoustic wave  
Keyword(3) line-focus-beam ultrasonic material characterization system  
Keyword(4) shear wave of water  
Keyword(5) velocity dispersion  
Keyword(6) attenuation coefficient  
Keyword(7)  
Keyword(8)  
1st Author's Name Kenji Otsu  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Mototaka Arakawa  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Jun-ichi Kushibiki  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2008-09-25 13:30:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2008-32 
Volume (vol) vol.108 
Number (no) no.212 
Page pp.1-6 
#Pages 6 
Date of Issue 2008-09-18 (US) 

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