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Paper Abstract and Keywords
Presentation 2019-05-16 14:00
[Poster Presentation] Expansion of circumferential strain measurement of ring structures by Brillouin gain spectrum model fitting into general ring-shaped structures
Shota Kitamura, Shusuke Narieda, Hiroshi Naruse (Mie Univ)
Abstract (in Japanese) (See Japanese page) 
(in English) A method has been proposed for measuring circumferential strain in ring structures by fitting a model of the Brillouin gain spectrum (BGS) to the BGSs observed distributedly in an optical fiber installed around a ring. In this method, Fourier coefficients included in the model to describe the strain to be measured are determined. In this report, this circumferential strain measurement method for the ring is expanded into that for more general ring-shaped structures such as elliptical and square rings. We measured the strain of both the rings under concentrated and distributed loads by simulations, and investigated the strain measurement errors. The strain measurement errors were approximately the same, independent of the applied loads and cross sectional shapes, including the ring investigated previously. These results indicate that the circumferential strain method expanded by us is available for general ring-shaped structures.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical fiber sensing / Brillouin gain spectrum / annular structure / load distribution / strain measurement / error / simulation /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 33, OFT2019-3, pp. 11-16, May 2019.
Paper # OFT2019-3 
Date of Issue 2019-05-09 (OFT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee OFT  
Conference Date 2019-05-16 - 2019-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) I-site NANBA 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2019-05-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Expansion of circumferential strain measurement of ring structures by Brillouin gain spectrum model fitting into general ring-shaped structures 
Sub Title (in English)  
Keyword(1) Optical fiber sensing  
Keyword(2) Brillouin gain spectrum  
Keyword(3) annular structure  
Keyword(4) load distribution  
Keyword(5) strain measurement  
Keyword(6) error  
Keyword(7) simulation  
1st Author's Name Shota Kitamura  
1st Author's Affiliation Mie University (Mie Univ)
2nd Author's Name Shusuke Narieda  
2nd Author's Affiliation Mie University (Mie Univ)
3rd Author's Name Hiroshi Naruse  
3rd Author's Affiliation Mie University (Mie Univ)
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Date Time 2019-05-16 14:00:00 
Presentation Time 100 
Registration for OFT 
Paper # IEICE-OFT2019-3 
Volume (vol) IEICE-119 
Number (no) no.33 
Page pp.11-16 
#Pages IEICE-6 
Date of Issue IEICE-OFT-2019-05-09 

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