Intensity-referenced temperature-independent curvature sensing concept based on chirped gratings embedded in a composite laminate

R. Romero; Orlando Frazao; D. A. Pereira; Henrique M. Salgado; Francisco M. Araujo; Luis Alberto Almeida Ferreira

doi:10.1117/12.566627

9 June 2004 Intensity-referenced temperature-independent curvature sensing concept based on chirped gratings embedded in a composite laminate

R. Romero, Orlando Frazao, D. A. Pereira, Henrique M. Salgado, Francisco M. Araujo, Luis Alberto Almeida Ferreira

Author Affiliations +

Proceedings Volume 5502, Second European Workshop on Optical Fibre Sensors; (2004) https://doi.org/10.1117/12.566627
Event: Second European Workshop on Optical Fibre Sensors, 2004, Santander, Spain

Abstract

An intensity-referenced temperature-independent curvature measurement technique using a smart composite comprising two chirped fiber Bragg gratings is demonstrated. The two gratings are embedded on opposite sides of a composite laminate and act simultaneously as curvature sensors and as wavelength discriminators, enabling an unambiguous measurement of the composite radius of curvature.

Citation Download Citation

R. Romero, Orlando Frazao, D. A. Pereira, Henrique M. Salgado, Francisco M. Araujo, and Luis Alberto Almeida Ferreira "Intensity-referenced temperature-independent curvature sensing concept based on chirped gratings embedded in a composite laminate", Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); https://doi.org/10.1117/12.566627

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