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Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor

We have developed a new method for measuring temperature and velocity at a high spatial resolution (minimum 2.56 mm pitch along an optical fiber). The developed method uses the same principle as a hot wire anemometer, where the velocity perpendicular to an optical fiber is estimated as a function of...

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Autores principales: Sekine, Masashi, Furuya, Masahiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9921475/
https://www.ncbi.nlm.nih.gov/pubmed/36772667
http://dx.doi.org/10.3390/s23031627
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author Sekine, Masashi
Furuya, Masahiro
author_facet Sekine, Masashi
Furuya, Masahiro
author_sort Sekine, Masashi
collection PubMed
description We have developed a new method for measuring temperature and velocity at a high spatial resolution (minimum 2.56 mm pitch along an optical fiber). The developed method uses the same principle as a hot wire anemometer, where the velocity perpendicular to an optical fiber is estimated as a function of the cooling curve of a gold-coated layer on the optical fiber Joule-heated intermittently. The developed optical fiber sensor demonstrated the ability to acquire a transient velocity profile in airflow experiments with high repeatability and accuracy. This paper describes optical fiber-based velocity measurement in the velocity range of approximately 0–7 m/s with an error of approximately 10% compared to a hot wire anemometer and a new method for simultaneous temperature and velocity measurements. Applicability to velocity distribution measurements and seconds transient velocity changes are also described.
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spelling pubmed-99214752023-02-12 Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor Sekine, Masashi Furuya, Masahiro Sensors (Basel) Article We have developed a new method for measuring temperature and velocity at a high spatial resolution (minimum 2.56 mm pitch along an optical fiber). The developed method uses the same principle as a hot wire anemometer, where the velocity perpendicular to an optical fiber is estimated as a function of the cooling curve of a gold-coated layer on the optical fiber Joule-heated intermittently. The developed optical fiber sensor demonstrated the ability to acquire a transient velocity profile in airflow experiments with high repeatability and accuracy. This paper describes optical fiber-based velocity measurement in the velocity range of approximately 0–7 m/s with an error of approximately 10% compared to a hot wire anemometer and a new method for simultaneous temperature and velocity measurements. Applicability to velocity distribution measurements and seconds transient velocity changes are also described. MDPI 2023-02-02 /pmc/articles/PMC9921475/ /pubmed/36772667 http://dx.doi.org/10.3390/s23031627 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sekine, Masashi
Furuya, Masahiro
Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor
title Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor
title_full Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor
title_fullStr Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor
title_full_unstemmed Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor
title_short Development of Measurement Method for Temperature and Velocity Field with Optical Fiber Sensor
title_sort development of measurement method for temperature and velocity field with optical fiber sensor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9921475/
https://www.ncbi.nlm.nih.gov/pubmed/36772667
http://dx.doi.org/10.3390/s23031627
work_keys_str_mv AT sekinemasashi developmentofmeasurementmethodfortemperatureandvelocityfieldwithopticalfibersensor
AT furuyamasahiro developmentofmeasurementmethodfortemperatureandvelocityfieldwithopticalfibersensor