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Mostrando ítems 1-10 de 15
In-field torsion measurements on solar trackers using fiber optic sensors
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
In-field torsion measurements on solar trackers using fiber Bragg gratings are presented. 45 FBG sensors have been deployed in an operational solar energy plant to study the mechanical response of the structure to wind.
Sistema de interrogación multi-sensor basado en multiplexación en longitud de onda y tiempo
(SEDOPTICA, 2021)
Contribución a congreso / Biltzarrerako ekarpena,
En este trabajo se propone un sistema de interrogación versátil y económico basada en la
generación de pulsos empleando la modulación directa de diodos láser DFB. Se ha demostrado
una resolución en longitud de onda de 1 ...
Medida de torsión en seguidores solares con sensores de fibra óptica
(SEDOPTICA, 2021)
Contribución a congreso / Biltzarrerako ekarpena,
En este trabajo se ha monitorizado la torsión sufrida por una estructura de seguidores solares
empleando sensores de fibra óptica. Estas medidas de campo se han obtenido con una
red de sensores formada por 45 redes de ...
Enhanced optical fiber lasers and optical fiber sensors assisted by micro-drilled optical fibers
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
Enhanced OFS assisted by micro-drilled optical fibers acting as mirrors are
demonstrated. Strain sensitivity improved more than one order of magnitude in comparison
with FBG sensors using a 50 μm-waist micro-drilled taper ...
Distributed humidity sensor for moisture-front monitoring in soils
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
In this contribution, high spatial resolution distributed humidity sensing was demonstrated for moisture-front monitoring in soils by using polyimide coated optical fiber.
Traffic monitoring based on FBG sensor arrays in asphalt structures
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
We evaluate the capabilities of optical fiber sensors to measure traffic flow, speed, weight estimation and pavement degradation. The proper operation of the system has been proved 3.5 years after the installation in a ...
WDM and TDM interrogation by sequentially pulsing direct modulated DFBs
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
A new versatile and cost-effective interrogation system by pulsing direct modulated (DM) DFB laser diodes is proposed. 1 pm wavelength resolution and 600 m sensor spacing is demonstrated by sequentially pulsing a DM DFB.
Quasi-distributed vibration analysis of a cantilever beam using OFDR and weak reflectors
(Optica Publishing Group, 2022)
Contribución a congreso / Biltzarrerako ekarpena,
This work evaluates the performance of a quasi-distributed in-line velocimeter based on OFDR and weak reflectors to measure vibration every 10 cm, using a cantilever beam under free-end damping and during an impact-hammer test.
Multicore fiber sensors for strain measurement towards traffic monitoring
(SPIE, 2023)
Contribución a congreso / Biltzarrerako ekarpena,
In this work, two new interferometric sensors based on multicore optical fibers for the measurement of strain with the
ultimate goal of traffic monitoring are presented. The operating principle of each sensor relied on ...
Fiber optic mirror fabrication using general-purpose metallic pigments
(SPIE, 2023)
Contribución a congreso / Biltzarrerako ekarpena,
In this work, the potential of using general-purpose paints to fabricate highly reflective, low-cost optical mirrors is evaluated. The study shows that high-reflectivity mirrors can be created in standard single-mode fiber ...