Application of a Photonic Crystal Fiber LPG for vibration monitoring

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2013

Autores

Nascimento, IM (Autor) Outra; Chesini, G (Autor) Outra; Sousa, M (Autor) Outra; Osorio, JH (Autor) Outra; Baptista, JM (Autor) Outra; Cordeiro, CMB (Autor) Outra; Jorge, PAS (Autor) FCUP

Ata de Conferência Internacional

Título: FIFTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS

5th European Workshop on Optical Fibre Sensors

Krakow, POLAND, MAY 19-22, 2013

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-006-FTX

DOI: 10.1117/12.2026723

Abstract (EN): A fiber optic sensor based on a long-period grating (LPG) inscribed in a photonic crystal fiber is investigated for vibration sensing for structural monitoring applications. In this paper, preliminary results are shown demonstrating the sensor ability to detect vibration induced in a test structure. The sensor frequency response when attached to a loudspeaker-acrylic plate stimulation system (tested in the range from 40 Hz to 2.5 kHz) is analyzed using an intensity based scheme with a tunable laser. An alternative interrogation scheme, where the vibration signal is retrieved from a spectral scan, is also demonstrated and analyzed showing promising characteristics for structural health monitoring.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4