Transversal load measurement based on twisted optical fibers

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

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

Revista

Título: Review of Scientific Instruments

Vol. 76

Páginas: 1-4

ISSN: 0034-6748

Editora: American Institute of Physics

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 1 Citação

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-000-299

DOI: 10.1063/1.2005407

Abstract (EN): An evaluation of two optical fiber sensing heads for measuring transversal load is presented. Their construction introduces power loss without the need of a pair of deformer plates and is based on crossing two fibers in braid-type (braid twisted), and of an optical fiber stretched out which is wrapped up by another one in spiral form (spiral twisted), respectively. For a higher sensitivity, the braid twisted configuration is preferable. Nevertheless, in both sensing heads, the sensitivity can be enhanced by decreasing the enrollment period and/or by choosing the appropriate encapsulation of the sensing head. Relative to resolution and hysteresis, the spiral twisted sensing head presented the best result. However, further work on the plasticity of the coatings is needed to decrease hysteresis. These configurations can be embedded in composite materials and used in many applications. (c) 2005 American Institute of Physics.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4