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Paper Abstract and Keywords
Presentation 2018-11-16 10:05
Loss affect to the Estimation of a Rebar
Ryo Sakamoto, Toshiyuki Tanaka (Nagasaki Univ.) MW2018-106
Abstract (in Japanese) (See Japanese page) 
(in English) Rebar can be easily detected by using concrete radar. However, the covering depth and rebar diameter required for safety inspection is not accurately estimated. We have proposed a method to simultaneously estimate the relative permittivity of concrete, the position of rebar and the diameter of rebar using electromagnetic wave pulse. Using the proposed method, it was not possible to estimate the diameter of the rebar with sufficient accuracy for the measured data.In this paper, when the conductivity exists, the pulse width widens according to the propagation distance, so it is clarified that the arrival time changes. We discuss the method of correcting the arrival time and estimating the diameter of the rebar.
Keyword (in Japanese) (See Japanese page) 
(in English) Detection a rebar / Nondestructive test / Pulse width / Conductivity / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 308, MW2018-106, pp. 71-76, Nov. 2018.
Paper # MW2018-106 
Date of Issue 2018-11-08 (MW) 
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 MW2018-106

Conference Information
Committee MW  
Conference Date 2018-11-15 - 2018-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukue Cultural Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave Technologies 
Paper Information
Registration To MW 
Conference Code 2018-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Loss affect to the Estimation of a Rebar 
Sub Title (in English)  
Keyword(1) Detection a rebar  
Keyword(2) Nondestructive test  
Keyword(3) Pulse width  
Keyword(4) Conductivity  
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1st Author's Name Ryo Sakamoto  
1st Author's Affiliation Nagasaki University (Nagasaki Univ.)
2nd Author's Name Toshiyuki Tanaka  
2nd Author's Affiliation Nagasaki University (Nagasaki Univ.)
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Speaker Author-1 
Date Time 2018-11-16 10:05:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2018-106 
Volume (vol) vol.118 
Number (no) no.308 
Page pp.71-76 
#Pages 6 
Date of Issue 2018-11-08 (MW) 

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