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Paper Abstract and Keywords
Presentation 2018-10-11 16:00
[Poster Presentation] Effect of distributed load on BGS-based ring circumferential strain measurement
Kento Nishimura, Shusuke Narieda, Hiroshi Naruse (Mie Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed a method for measuring a ring circumferential strain. In this method, the model of a Brillouin gain spectrum (BGS) is fitted to BGSs observed distributedly in an optical fiber on a ring circumference. In addition, we clarified, by simulation, the relationship between BGS observation conditions (observation angle, section and frequency) and the measurement error of the strain on the ring to which a pair of concentrated loads are applied. In this report, strain measurement errors generated in the ring under two kinds of unidirectional distributed loads and bidirectional uniform loads are investigated to clarify the error characteristics under various load conditions. As a result, it was found that the strain measurement error is approximately proportional to the square root of the interval of the observation angle and frequency, namely, the reciprocal of the number of observed BGSs, similarly to the case with the concentrated load. This shows that the strain measurement error decreases independently of the load distribution with the increase of the number of the BGS observation points.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical fiber sensing / Brillouin gain spectrum / observation condition / distributed load / ring / strain / measurement error / simulation  
Reference Info. IEICE Tech. Rep., vol. 118, no. 238, OFT2018-47, pp. 153-156, Oct. 2018.
Paper # OFT2018-47 
Date of Issue 2018-10-04 (OFT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee OFT  
Conference Date 2018-10-11 - 2018-10-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Touhoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2018-10-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effect of distributed load on BGS-based ring circumferential strain measurement 
Sub Title (in English)  
Keyword(1) Optical fiber sensing  
Keyword(2) Brillouin gain spectrum  
Keyword(3) observation condition  
Keyword(4) distributed load  
Keyword(5) ring  
Keyword(6) strain  
Keyword(7) measurement error  
Keyword(8) simulation  
1st Author's Name Kento Nishimura  
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 2018-10-11 16:00:00 
Presentation Time 85 
Registration for OFT 
Paper # IEICE-OFT2018-47 
Volume (vol) IEICE-118 
Number (no) no.238 
Page pp.153-156 
#Pages IEICE-4 
Date of Issue IEICE-OFT-2018-10-04 

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