Bravo Acha, MikelSáenz, J.Bravo Navas, M.López-Amo Sáinz, Manuel2019-12-232019-12-232012M. Bravo, J. Saenz, M. Bravo-Navas and M. Lopez-Amo, 'Concrete Beam Bending Test Monitorization Using a High Strain Fiber Optic Sensor,' in Journal of Lightwave Technology, vol. 30, no. 8, pp. 1085-1089, April15, 2012.0733-872410.1109/JLT.2011.2169233https://academica-e.unavarra.es/handle/2454/35951In this work the development of an 'eight-shape' fiber optic sensor for high strain measurement is experimentally demonstrated. This strain sensor is interrogated using a commercial optical time domain reflectometer through a dual configuration that is able to measure backscattering and the transmission of an intensity pulse while reducing unwanted cladding-mode coupling effects. An 'in field' concrete beam bending test was also performed in order to compare the proposed low-cost intensity bending sensor with the mature fiber Bragg grating technology.5 p.application/pdfeng© 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other workOTDRFiber Bragg gratingStructural health monitoringBending sensorsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess