Intensity-Encoded Polymer Optical Fiber Accelerometer

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Paulo Fernando C Costa Antunes (Autor) Outra; Humberto Varum (Autor) FEUP; Paulo S Andre (Autor) Outra

Revista

Título: IEEE Sensors Journal

Vol. 13

Páginas: 1716-1720

ISSN: 1530-437X

Editora: IEEE

Indexação

ISI Web of Knowledge - 18 Citações

Scopus - 26 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia civil > Engenharia estrutural

Outras Informações

ID Authenticus: P-005-1C6

DOI: 10.1109/jsen.2013.2242463

Abstract (EN): In this paper, we report the development and experimental implementation of a low-cost, compact, intensity-encoded accelerometer based on polymer optical fibers (POF). The proposed accelerometer sensor element relies on the misalignment between two POFs, being the external acceleration encoded in the optical signal intensity. The accelerometer performance was optimized by simulation, resulting in a coupling efficiency and modulation index values of 0.38 and 1.78, respectively. The implemented device has a sensitivity of 33.5 +/- 0.1 mV/g and a resonant frequency of 51.44 +/- 0.1 Hz, obtained for a signal to noise ratio of 20 dB. This value for the resonant frequency is suitable for applications in several fields, such as structural health monitoring of civil engineering structures.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5