Discrimination of temperature, strain, and transverse load by using fiber Bragg gratings in a twisted configuration

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

Authors

Silva, SFO (Author) Other; Frazao, O (Author) Other; Santos, JL (Author) FCUP; Araujo, FM (Author) Other; Ferreira, LA (Author) Other

Journal

Title: IEEE Sensors Journal

Vol. 6

Pages: 1609-1613

ISSN: 1530-437X

Publisher: IEEE

Indexing

ISI Web of Knowledge - 9 Citations

Scopus - 11 Citations

Scientific classification

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

Other information

Authenticus ID: P-004-FPY

DOI: 10.1109/jsen.2006.884443

Abstract (EN): A sensing head based on two fiber Bragg gratings arranged in a twisted configuration is proposed to measure three parameters simultaneously, namely 1) temperature, 2) strain, and 3) transverse load. One of the gratings is impressed into a high-birefringence fiber that provides two distinct spectral signatures, which, together with the signature of the second grating and the geometric characteristics of the sensing head, enable the degrees of freedom required to achieve the simultaneous measurement functionality. The resolutions achieved with this configuration for the measurement of temperature, strain, and transverse load are +/- 3.1 degrees C, +/- 46 mu epsilon, and +/- 0.01 N/mm, respectively.

Language: English

Type (Professor's evaluation): Scientific