A SIMPLE SMART COMPOSITE USING FIBER BRAGG GRATING SENSORS FOR STRAIN AND TEMPERATURE DISCRIMINATION

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Frazao, O (Author) Other; Oliveira, R (Author) Other; Dias, I (Author) Other

Journal

Title: Microwave and Optical Technology Letters

Vol. 51

Pages: 235-239

ISSN: 0895-2477

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 5 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-003-RB8

DOI: 10.1002/mop.23990

Abstract (EN): A smart laminated composite with a simple geometry was produced with embedded fiber Bragg grating sensors. The smart structure is composed of two Bragg gratings located in regions of different thicknesses of the laminated composite. Although one of the Bragg gratings is embedded between two layers, the other is embedded in jour layers. When the strain is applied to the smart composite, different response is obtained. Because of this characteristic it is possible to discriminate strain and temperature using a traditional matrix method. To reduce the inherent error, an artificial neural network approach is proposed that will improve the strain and temperature measurement discrimination when using this new configuration. These instrumented carbon fiber laminates can be used for monitoring of reinforcement and protection of structures. (C) 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 235-239, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23990

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5