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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Optical Fiber Anemometer Based on a Multi-FBG Curvature Sensor

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Author(s):
Fujiwara, Eric [1] ; Hayashi, Juliano G. [2, 3] ; Delfino, Tiago da Silva [2, 3] ; Jorge, Pedro A. S. [4] ; de Barros Cordeiro, Cristiano Monteiro [2]
Total Authors: 5
Affiliation:
[1] Univ Estadual Campinas, Sch Mech Engn, Lab Photon Mat & Devices, BR-13083860 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Gleb Wataghin Inst Phys, BR-13083859 Campinas, SP - Brazil
[3] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants - England
[4] INESC TEC, P-4169007 Porto - Portugal
Total Affiliations: 4
Document type: Journal article
Source: IEEE SENSORS JOURNAL; v. 19, n. 19, SI, p. 8727-8732, OCT 1 2019.
Web of Science Citations: 0
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. (AU)

FAPESP's process: 14/50632-6 - Surface-plasmon resonance sensors based on microstructured optical fiber
Grantee:Cristiano Monteiro de Barros Cordeiro
Support type: Regular Research Grants
FAPESP's process: 17/25666-2 - Development of an optical fiber force myography sensor for applications in human-robot interfaces
Grantee:Eric Fujiwara
Support type: Regular Research Grants
FAPESP's process: 16/25196-3 - Optical fiber and Arduino-based sensors
Grantee:Tiago da Silva Delfino
Support type: Scholarships in Brazil - Scientific Initiation