Browsing Comunicaciones y ponencias de congresos DIEC - IEKS Biltzarretako komunikazioak eta txostenak by UPNA Author "Leandro González, Daniel"
Now showing items 1-15 of 15
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Distributed humidity sensor for moisture-front monitoring in soils
Leandro González, Daniel
; Delgado Zabala, Oihane; López Rodríguez, José Javier ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel (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. -
Enhanced optical fiber lasers and optical fiber sensors assisted by micro-drilled optical fibers
Pérez Herrera, Rosa Ana ; Bravo Acha, Mikel ; Roldán Varona, Pablo; Leandro González, Daniel ; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel (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 ... -
Fiber optic mirror fabrication using general-purpose metallic pigments
Jaso Gallego, Isabel; Mejia-Olivo, Edison; Bravo Acha, Mikel ; Leandro González, Daniel ; López-Amo Sáinz, Manuel (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 ... -
High sensitivity fiber-optic liquid level sensor using biconical tapered fibers
Júdez Colorado, Aitor; Leandro González, Daniel ; Pérez Herrera, Rosa Ana ; Galarza Galarza, Marko ; López-Amo Sáinz, Manuel (Optical Society of America, 2018)
Contribución a congreso / Biltzarrerako ekarpena
A liquid level sensor is presented using a biconical tapered standard single-mode fiber, being its main characteristic an outstanding sensitivity for a low cost transducer. Temperature compensation is enabled with the same ... -
In-field torsion measurements on solar trackers using fiber optic sensors
Leandro González, Daniel ; Bravo Acha, Mikel ; Júdez Colorado, Aitor ; Mariñelarena Ollacarizqueta, Jon ; Falcone Lanas, Francisco Javier ; Loayssa Lara, Alayn; López-Amo Sáinz, Manuel ; Jiménez, S.; Achaerandio, Álvaro (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. -
Medida de torsión en seguidores solares con sensores de fibra óptica
Leandro González, Daniel ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel ; Loayssa Lara, Alayn; Júdez Colorado, Aitor ; Mariñelarena Ollacarizqueta, Jon ; Falcone Lanas, Francisco Javier ; Jiménez Romero, Sergio; Moriana García, Iñaki (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 ... -
Micro-drilled optical fiber for enhanced laser strain sensors
Pérez Herrera, Rosa Ana ; Bravo Acha, Mikel ; Roldán Varona, Pablo; Leandro González, Daniel ; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel (SPIE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
In this work, we present an experimental measurement of temperature and strain sensitivities of a micro-drilled optical fiber (MDOF). The MDOF consisted of a quasi-randomly distributed reflector along a single mode fiber ... -
Multicore fiber sensors for strain measurement towards traffic monitoring
Sánchez González, Arturo; Pradas Martínez, Javier; Corera Orzanco, Íñigo ; Bravo Acha, Mikel ; Leandro González, Daniel ; Dauliat, Romain; Jamier, Raphael; Roy, Philippe; Pérez Herrera, Rosa Ana ; López-Amo Sáinz, Manuel (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 ... -
Multiplexing optical fiber Fabry-Perot interferometers based on air-microcavities
Pérez Herrera, Rosa Ana ; Novais, Susana; Bravo Acha, Mikel ; Leandro González, Daniel ; Silva, Susana; Frazão, Orlando; López-Amo Sáinz, Manuel (SPIE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
In this work we demonstrate the multiplexing capability of new optical fiber Fabry-Perot interferometers based on airmicrocavities using a commercial FBG interrogator. Three optimized air-microcavity interferometer sensors ... -
One-year analysis of road condition using FBG arrays
Corera Orzanco, Íñigo ; Pradas Martínez, Javier ; Leandro González, Daniel ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel (SPIE, 2023)
Contribución a congreso / Biltzarrerako ekarpena
In this work, it is presented an analysis of FBG arrays installed in a public road. The arrays were installed in a newly paved urban road and were monitored for more than one year. The study evidences the permanent deformation ... -
Quasi-distributed vibration analysis of a cantilever beam using OFDR and weak reflectors
Leandro González, Daniel ; Zhu, Mengshi; Wada, Daichi; Kasai, Tokio; Igawa, Hirotaka; López-Amo Sáinz, Manuel ; Murayama, Hideaki (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. -
Sistema de interrogación multi-sensor basado en multiplexación en longitud de onda y tiempo
Bravo Acha, Mikel ; Leandro González, Daniel ; Pérez, Asier; López-Amo Sáinz, Manuel (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 ... -
Traffic monitoring based on FBG sensor arrays in asphalt structures
Bravo Acha, Mikel ; Leandro González, Daniel ; Bravo Acha, A.; Bravo Navas, M.; Mitxelena, J. R.; Martínez Mazo, J. J.; Camarero, E.; López-Amo Sáinz, Manuel (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 ... -
Ultra-long (275 km) random distributed feedback fiber laser for remote sensor monitoring
Miguel Soto, Verónica de ; Leandro González, Daniel ; López-Amo Sáinz, Manuel (Optical Society of America, 2018)
Contribución a congreso / Biltzarrerako ekarpena
An interferometric sensor located 275 km away from the monitoring station has been interrogated by a double-pumped random distributed feedback fiber laser, reaching the longest distance in fiber optic remote sensing reported ... -
WDM and TDM interrogation by sequentially pulsing direct modulated DFBs
Pérez-González, A.; Bravo Acha, Mikel ; Leandro González, Daniel ; Pérez Herrera, Rosa Ana ; López-Amo Sáinz, Manuel (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.
