Temperature-Monitored Fibre Optic Current Sensor Using Channelled-Spectrum Analysis

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022

Autores

Robalinho, P (Autor) Outra; Melo, M (Autor) Outra; Frazao, O (Autor) FCUP; Ribeiro, ABL (Autor) Outra

Revista

Título: IEEE Photonics Technology Letters

Vol. 34

Páginas: 1308-1310

ISSN: 1041-1135

Editora: IEEE

Indexação

ISI Web of Knowledge - 0 Citações

Outras Informações

ID Authenticus: P-00X-9J1

DOI: 10.1109/lpt.2022.3214105

Abstract (EN): The fibre optic current sensor demonstrated here uses the intrinsic temperature and wavelength dependence of the Verdet constant of a terbium gallium garnet (TGG) magneto-optic material and the two micro-optic linear polarizers attached, to simultaneously extract the values of temperature and the optical Faraday rotation (induced by the presence of the magnetic field due an electric current on a conductor) without any extra optical component attached to the optical sensor head. The simultaneous measurement is achieved by illuminating the sensor head with a broadband optical source and by careful signal processing of the originated channelled-spectrum, compensate the sensor's temperature dependence.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 3