Optical Fiber Anemometer Based on a Multi-FBG Curvature Sensor

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Fujiwara, E (Autor) Outra; Hayashi, JG (Autor) Outra; Delfino, TD (Autor) Outra; Jorge, PAS (Autor) FCUP; de Barros Cordeiro, CMD (Autor) Outra

Revista

Título: IEEE Sensors Journal

Vol. 19

Páginas: 8727-8732

ISSN: 1530-437X

Editora: IEEE

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 10 Citações

Outras Informações

ID Authenticus: P-00R-23Y

DOI: 10.1109/jsen.2019.2923046

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6