Quasi-distributed displacement sensor for structural monitoring using a commercial OTDR

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Pinto, NMP (Autor) Outra; Frazao, O (Autor) Outra; Baptista, JM (Autor) Outra; Santos, JL (Autor) FCUP

Revista

Título: Optics and Lasers in Engineering

Vol. 44

Páginas: 771-778

ISSN: 0143-8166

Editora: Elsevier

Indexação

ISI Web of Knowledge - 32 Citações

Scopus - 35 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-004-JB2

DOI: 10.1016/j.optlaseng.2005.07.009

Abstract (EN): A quasi-distributed displacement sensor for structural monitoring using an optical time domain reflectometer is demonstrated. Four displacement sensing heads are placed along a standard single mode optical fibre in several locations with different intervals. Their configurations introduce power loss through the decrease of their fibre loop radius when displacement is applied. The decrease of the light intensity with displacement variation is reported. Losses of 9 dB for a similar to 120 mm displacement with a sensitivity of similar to 0.027 dB/mm are reported. The quasi-distributed configuration is able to address sensors with similar to 1 m distance resolution between them.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8