Contributions to the development of Brillouin distributed sensors for structural health monitoring
Fecha
2019Director
Versión
Acceso abierto / Sarbide irekia
Tipo
Tesis doctoral / Doktoretza tesia
Impacto
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nodoi-noplumx
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Resumen
The main objectives of this thesis is to contribute to the enhancement of the performance of distributed optical ber sensors (DOFS) based on stimulated Brillouin scattering (SBS) by analyzing their limitations and proposing solutions to overcome their current constraints. The dissertation has been focused on improving different aspects of dynamic and static Brillouin optical time-domain analysis ...
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The main objectives of this thesis is to contribute to the enhancement of the performance of distributed optical ber sensors (DOFS) based on stimulated Brillouin scattering (SBS) by analyzing their limitations and proposing solutions to overcome their current constraints. The dissertation has been focused on improving different aspects of dynamic and static Brillouin optical time-domain analysis (BOTDA) and Brillouin optical coherent-domain analysis (BOCDA) sensors. Moreover, this research work has tried to contribute to reduce the existing gap between the investigation of DOFS and their industrial applications, demonstrating the capability of these sensors to provide efficient and valuable measurements in real application scenarios. In particular, the objectives of this dissertation are:
-Enhance the signal-to-noise ratio (SNR) constraints faced by of BOTDA sensors by proposing alternative setups or post-processing solutions to achieve better performance.
-Analyze and study the dynamic self-heterodyne detection BOTDA sensor recently presented by our research group to try to improve its performance by proposing solutions to their constraints and alternative setups.
-Research on the limitations of a particular single-ended access BOCDA sensor setup with the aim of enhancing its performance.
-Design, develop and implement novel measuring systems to deploy the investigated DOFS in real applications and demonstrate their capabilities. [--]
Materias
Brillouin distributed sensors,
Distributed optical fiber sensors,
Structural health monitoring
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila
Programa de doctorado
Entidades Financiadoras
Tesis financiada por la Universidad Pública de Navarra a través del programa de ayudas para la formación de personal investigador y ayudas a la movilidad; Ministerio de Economía y
Competitividad a través de los proyectos TEC2013-47264-C2-2-R y TEC2016-76021-C2-1-R; y Gobierno de Navarra-Departamento de Desarrollo Económico por los proyectos I-SEN
0011-1365-2016-00069 y WINSOLAR 0011-1365-2017-000122.