Optical fiber sensor for water velocity measurement in rivers and channels

In this work, optical fiber Bragg grating sensors were used to measure water velocity and examine how it was distributed in open channels. Several types of coatings were incorporated into the design of the sensors to examine their effects on the strain that the fibers experienced as a result of the...

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Bibliographic Details
Published in:Scientific reports 2024-06, Vol.14 (1), p.13377-12
Main Authors: Rodriguez, Armando, Dieguez, Pedro, Urroz, Jose Carlos, Bravo, Mikel, Lopez, Javier, Lopez-Amo, Manuel
Format: Article
Language:English
Subjects:
639/166/988
639/624/1075/1083
Accuracy
Aluminum
Coatings
Deformation
Elastic coefficient
Fiber optic sensors
Fiber optics
Fibers
Flow rates
Humanities and Social Sciences
Laboratories
Measurement techniques
multidisciplinary
Open channels
Performance assessment
Rivers
Science
Science (multidisciplinary)
Sensors
Simulation
Software
Strain
Stream flow
Temperature effects
Velocity
Water flow
Water resources management
Water velocity
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Description
Summary:In this work, optical fiber Bragg grating sensors were used to measure water velocity and examine how it was distributed in open channels. Several types of coatings were incorporated into the design of the sensors to examine their effects on the strain that the fibers experienced as a result of the water flow. Due to their low elastic coefficient, which reduced the hysteresis, the results indicated that the aluminum- and acrylate-coated fibers had the best performance. ANSYS-CFX V2020 R2 software was used to model the strain encountered by the fibers under various flow rates to assess the performance of the FBG sensors. The calculations and actual data exhibited good convergence, demonstrating the accuracy of the FBG sensors in determining water velocity. The study illustrated the usability of the proposal in both scenarios by contrasting its application in rivers and channels.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-64202-5