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Paper Abstract and Keywords
Presentation 2010-11-25 14:30
Detection of micro crack in a solid sample by low power pulsed laser
Ryosuke Nakase, Mami Matsukawa (Doshisha Univ.) US2010-80
Abstract (in Japanese) (See Japanese page) 
(in English) Detection of micro crack using two techniques is reported. One technique is the laser ultrasonics. Another is the exaction of crack, using low frequency and large amplitude ultrasonic wave transmitted by a ceramic transducer to open and close the crack. Laser induced ultrasonic wave propagated solid specimen contained crack, and then measured by the attached PVDF transducers. By scanning laser irradiating point, distribution map of the crack was obtained. Used an acrylic specimen, we visually compared distribution map with the actual position of crack tips.
Keyword (in Japanese) (See Japanese page) 
(in English) Micro crack / Nondestructive evaluation / Laser ultrasonic / Thermoelastic effect / Laser induced elastic wave / Exaction / PVDF transducer /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 306, US2010-80, pp. 13-17, Nov. 2010.
Paper # US2010-80 
Date of Issue 2010-11-18 (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 2010-11-25 - 2010-11-25 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To US 
Conference Code 2010-11-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Detection of micro crack in a solid sample by low power pulsed laser 
Sub Title (in English)  
Keyword(1) Micro crack  
Keyword(2) Nondestructive evaluation  
Keyword(3) Laser ultrasonic  
Keyword(4) Thermoelastic effect  
Keyword(5) Laser induced elastic wave  
Keyword(6) Exaction  
Keyword(7) PVDF transducer  
Keyword(8)  
1st Author's Name Ryosuke Nakase  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Mami Matsukawa  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2010-11-25 14:30:00 
Presentation Time 30 minutes 
Registration for US 
Paper # US2010-80 
Volume (vol) vol.110 
Number (no) no.306 
Page pp.13-17 
#Pages 5 
Date of Issue 2010-11-18 (US) 

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