Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/345382
Type: Artigo
Title: Optical fiber specklegram sensor analysis by speckle pattern division
Author: Fujiwara, Eric
Santos, Murilo Ferreira Marques dos
Suzuki, Carlos Kenichi
Abstract: An optical fiber specklegram sensor interrogation method based on speckle pattern fragmentation is presented. The acquired specklegram images are divided in a square grid, creating sub-images that are further processed by a correlation technique, allowing the quantification of localized changes in the specklegrams. The methodology was tested on the assessment of linear displacements using a microbending transducer, by evaluating different grid sizes. For a 5×5 grid, a 2.53  mm−1 sensitivity over a 0.27 mm range was obtained, representing an extension of 237.5% in comparison to the standard interrogation technique. Therefore, the presented technique allows enhancing the sensor dynamic range without modifying the experimental setup
Subject: Interferometria
Tecnologia de fibra óptica
Country: Estados Unidos
Editor: Optical Society of America
Rights: Fechado
Identifier DOI: 10.1364/AO.56.001585
Address: https://www.osapublishing.org/ao/abstract.cfm?uri=ao-56-6-1585
Date Issue: 2017
Appears in Collections:FEM - Artigos e Outros Documentos

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