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Optical strain gauge with high spatial resolution

Abstract: A technique to enhance the spatial resolution of typical fiber Bragg grating–based strain gauges has been experimentally verified in this study. Just analyzing the intensity of the reflection spectrum of a sampled fiber Bragg grating, its inner deformation profile has been obtained with a spatial resolution of Formula L<1mm. The proposed method employs a synthesis algorithm to retrieve the longitudinal axis strain profile of a sampled fiber Bragg grating glued to an asymmetric plate. The achieved experimental results have been compared to the mechanical simulations of the employed plate, exhibiting a good response even without compensating the residual stress provoked during the installation process.

 Autoría: Rodriguez-Cobo L., Cobo A., Lopez-Higuera J.,

 Fuente: Journal of Strain Analysis for Engineering Design, 2014, 49(6), 404-409

 Editorial: SAGE Publications Ltd

 Fecha de publicación: 01/04/2014

 Nº de páginas: 11

 Tipo de publicación: Artículo de Revista

 DOI: 10.1177/0309324714529282

 ISSN: 0309-3247,2041-3130

 Proyecto español: TEC2010-20224-C02-02

 Url de la publicación: https://doi.org//10.1177/0309324714529282