Hydrogen and deuterium distributed sensing using Chirped-Pulse φOTDR

Authors
García Ruiz, AndrésUniversity of Alcalá Author; Morana, Adriana; Fidalgo Martins, HugoUniversity of Alcalá Author; Martín López, SoniaUniversity of Alcalá Author; González Herráez, MiguelUniversity of Alcalá Author; [et al.]
Identifiers
Permanent link (URI): http://hdl.handle.net/10017/39646
DOI: 10.1117/12.2539094
ISBN: 0277-786X
Publisher
SPIE
Date
2019-10-01
Affiliation
Universidad de Alcalá. Departamento de Electrónica
Funders
European Commission
Ministerio de Economía y Competitividad
Comunidad de Madrid
Agencia Estatal de Investigación
Bibliographic citation
García-Ruiz, A., Morana, A., Martins, H. F., Martín-López, S., González-Herráez, M., Delepine-Lesoille, S., Boukenter, A., Ouerdane, Y. & Girard, S. 2019, "Chirped-pulse φOTDR as a hydrogen and deuterium distributed sensor“, Proceedings of SPIE, vol. 11199, 7th European Workshop on Optical Fibre Sensors, 111993G
Keywords
Distributed optical fiber sensors
Rayleigh scattering
Chemical sensing
Gas diffusion
Radioactive waste storage
Description / Notes
7th European Workshop on Optical Fibre Sensors (EWOFS'2019), 01/10/2019-04/10/2019, Limassol, Chipre.
Project
info:eu-repo/grantAgreement/EC/H2020/WaterJPI-JC-2015-04/EU/Dikes and Debris Flows Monitoring by Novel Optical Fiber Sensors/DOMINO
info:eu-repo/grantAgreement/EC/H2020/722509/EU/Fibre Nervous Sensing Systems/FINESSE
info:eu-repo/grantAgreement/MINECO//TEC2015-71127-C2-2-R/ES/REDUCCION DE LOS EFECTOS DE RUIDO EN SISTEMAS DE FIBRA OPTICA NO LINEALES/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097957-B-C31/ES/INGENIERIA DE SEÑALES OPTICAS COMPLEJAS PARA SISTEMAS DE FIBRA OPTICA MAS ALLA DE LA TELECOMUNICACION/
info:eu-repo/grantAgreement/Comunidad de Madrid//S2018%2FNMT4326/ES/Sensores e INstrumentación en tecnologías FOTÓNicas2/SINFOTON2
info:eu-repo/grantAgreement/AEI//IJCI-2017-33856
Document type
info:eu-repo/semantics/conferenceObject
Version
info:eu-repo/semantics/acceptedVersion
Publisher's version
https://doi.org/10.1117/12.2539094
Rights
Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
© 2019 SPIE
Access rights
info:eu-repo/semantics/openAccess
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Abstract
The detection and quantification of the presence of certain chemical species is of central importance regarding permanent structural health monitoring of key industrial fields and civil infrastructures such as oil extraction boreholes or radioactive waste repositories, where H2 is released. With this work we propose and test a competitive technique able to measure the concentration of hydrogen and deuterium thanks to their diffusion into the silica glass of a standard optical fiber, already employed for the distributed monitoring of large infrastructures. The proposed technique, based on Chirped-Pulse Phasesensitive Reflectometry (CP-φOTDR), could represent a novel solution for this problem, thanks to its ability to provide dynamical measurements of refractive index change, with great linearity and sensitivities of 10-8 refractive index units, featuring spatial resolutions of a few meters and kilometric sensing ranges.
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