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Optical fiber anemometer based on a multi-FBG curvature sensor

Optical fiber anemometer based on a multi-FBG curvature sensor
Optical fiber anemometer based on a multi-FBG curvature sensor
An optical fiber anemometer based on a flexible multi-FBG curvature sensor is reported. The probe is comprised of a structured polymer shell with embedded single-mode fibers with written fiber Bragg gratings. When the sensor is bent, the different spectral shift of the Bragg wavelengths allows the determination of the mechanical stimulus. Moreover, the probe was also used as a cantilever sensor for assessing the airflow speed in a wind tunnel. The sensor presented sensitivities of 0.8 nm/m-1 and 1.05 pm/(m/s) for curvature and square speed measurements, respectively, and the sensing characteristics can be improved by simply changing the material and the geometry of the bulk polymer shell, providing a versatile and feasible probe for the mechanical and flow measurements.
1530-437X
8727-8732
Fujiwara, Eric
15148d8b-819a-4f63-bc46-564856952891
Hayashi, Juliano G.
fe6db15b-ec75-4fd1-94f9-66efb217db21
Delfino, Tiago da Silva
c4c1ab2c-fd99-4a7e-87bb-81405a3bab1e
Jorge, Pedro A.S.
720e6df6-ada6-460c-9d9f-6b24f8b53bc8
de Barros Cordeiro, Cristiano Monteiro
785d4bd6-4825-4d70-a796-9652f2cd6ec6
Fujiwara, Eric
15148d8b-819a-4f63-bc46-564856952891
Hayashi, Juliano G.
fe6db15b-ec75-4fd1-94f9-66efb217db21
Delfino, Tiago da Silva
c4c1ab2c-fd99-4a7e-87bb-81405a3bab1e
Jorge, Pedro A.S.
720e6df6-ada6-460c-9d9f-6b24f8b53bc8
de Barros Cordeiro, Cristiano Monteiro
785d4bd6-4825-4d70-a796-9652f2cd6ec6

Fujiwara, Eric, Hayashi, Juliano G., Delfino, Tiago da Silva, Jorge, Pedro A.S. and de Barros Cordeiro, Cristiano Monteiro (2019) Optical fiber anemometer based on a multi-FBG curvature sensor. IEEE Sensors Journal, 19 (19), 8727-8732. (doi:10.1109/JSEN.2019.2923046).

Record type: Article

Abstract

An optical fiber anemometer based on a flexible multi-FBG curvature sensor is reported. The probe is comprised of a structured polymer shell with embedded single-mode fibers with written fiber Bragg gratings. When the sensor is bent, the different spectral shift of the Bragg wavelengths allows the determination of the mechanical stimulus. Moreover, the probe was also used as a cantilever sensor for assessing the airflow speed in a wind tunnel. The sensor presented sensitivities of 0.8 nm/m-1 and 1.05 pm/(m/s) for curvature and square speed measurements, respectively, and the sensing characteristics can be improved by simply changing the material and the geometry of the bulk polymer shell, providing a versatile and feasible probe for the mechanical and flow measurements.

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More information

Accepted/In Press date: 11 June 2019
e-pub ahead of print date: 14 June 2019
Published date: 1 October 2019

Identifiers

Local EPrints ID: 441920
URI: http://eprints.soton.ac.uk/id/eprint/441920
ISSN: 1530-437X
PURE UUID: a652fbd5-8e95-4445-ae4f-9ca0f607a8e8

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Date deposited: 02 Jul 2020 16:31
Last modified: 16 Mar 2024 08:22

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Contributors

Author: Eric Fujiwara
Author: Juliano G. Hayashi
Author: Tiago da Silva Delfino
Author: Pedro A.S. Jorge
Author: Cristiano Monteiro de Barros Cordeiro

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