Simultaneous measurement of strain and temperature using type I and type IIA fibre Bragg gratings

• Type: Article in International Scientific Journal
• Date: 2003

Authors

Frazao, O (Author) Other; Lima, MJN (Author) Other; Santos, JL (Author) FCUP

Journal

Title: Journal of Optics A: Pure and Applied Optics

Vol. 5

Pages: 183-185

ISSN: 1464-4258

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge - 29 Citations

Scopus - 28 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-000-GWZ

DOI: 10.1088/1464-4258/5/3/307

Abstract (EN): We present a fibre optic sensing head for making simultaneous measurements of temperature and strain, which operates over a large temperature range. The configuration is based on the different temperature sensitivities of type I and type IIA gratings written in a fibre with high germanium content. Maximal errors of +/-0.7 degreesC Hz(-1/2) and +/-3.8 muepsilon Hz(-1/2) are reported over 500 degreesC and 1200 muepsilon measurement ranges, respectively.

Language: English

Type (Professor's evaluation): Scientific