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Paper Abstract and Keywords
Presentation 2014-05-30 10:25
Amplitude and center measurements of sinusoidal dynamic strain using Brillouin gain spectrum model
Hiroshi Naruse, Yoshiki Hayase (Mie Univ.) OFT2014-12
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, a method is presented for measuring dynamic strain using a fiber-optic strain sensing system that relies on the strain dependence of the Brillouin gain spectrum (BGS) frequency shift. By restricting the dynamic strain to be measured to that varying with a period sufficiently shorter than the BGS observation time, the BGS under the strain is modeled and the model is then fitted to the observed BGS. This BGS modeling allows for the measurement of dynamic strain with high frequency using a conventional system. With this method, although the dynamic strain is not measured in real time, information such as maximum strain during the BGS observation time can be obtained. In this report, the sinusoidally varying dynamic strain is obtained, and the method for measuring the amplitude and center of this dynamic strain, by which the maximum strain can be calculate, is described. In addition, the error characteristics of this measurement are clarified through simulations.
Keyword (in Japanese) (See Japanese page) 
(in English) Dynamic strain / amplitude / center / Brillouin gain spectrum / model / fiber-optic sensing / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 64, OFT2014-12, pp. 57-60, May 2014.
Paper # OFT2014-12 
Date of Issue 2014-05-22 (OFT) 
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 OFT2014-12

Conference Information
Committee OFT  
Conference Date 2014-05-29 - 2014-05-30 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2014-05-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Amplitude and center measurements of sinusoidal dynamic strain using Brillouin gain spectrum model 
Sub Title (in English)  
Keyword(1) Dynamic strain  
Keyword(2) amplitude  
Keyword(3) center  
Keyword(4) Brillouin gain spectrum  
Keyword(5) model  
Keyword(6) fiber-optic sensing  
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Keyword(8)  
1st Author's Name Hiroshi Naruse  
1st Author's Affiliation Mie University (Mie Univ.)
2nd Author's Name Yoshiki Hayase  
2nd Author's Affiliation Mie University (Mie Univ.)
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Speaker Author-1 
Date Time 2014-05-30 10:25:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2014-12 
Volume (vol) vol.114 
Number (no) no.64 
Page pp.57-60 
#Pages 4 
Date of Issue 2014-05-22 (OFT) 

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