Simultaneous measurement for strain and temperature based on a long-period grating combined with a high-birefringence fiber loop mirror

• Type: Article in International Scientific Journal
• Date: 2006

Authors

Frazao, O (Author) Other; Marques, LM (Author) Other; Santos, S (Author) Other; Baptista, JM (Author) Other; Santos, JL (Author) FCUP

Journal

Title: IEEE Photonics Technology Letters

Vol. 18

Pages: 2407-2409

ISSN: 1041-1135

Publisher: IEEE

Indexing

ISI Web of Knowledge - 103 Citations

Scopus - 113 Citations

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Authenticus ID: P-004-G9X

DOI: 10.1109/lpt.2006.886139

Abstract (EN): This work presents an alternative solution for simultaneous measurement of strain and temperature. The sensing head is formed by a long-period fiber grating combined with a high-birefringence fiber loop mirror resulting in a configuration capable of temperature and strain discrimination. These optical devices have opposite sensitivity responses when a variation of temperature and/or strain is applied. Maximum errors of +/- 0.8 degrees C and +/- 21 mu epsilon are reported over 60 degrees C and 700-mu epsilon measurement ranges, respectively.

Language: English

Type (Professor's evaluation): Scientific