Embedded fibre Bragg grating array sensors in aluminium alloy matrix by ultrasonic consolidation

Chengbo Mou; Pouneh Saffari; Dezhi Li; Kaiming Zhou; Lin Zhang; Rupert Soar; Ian Bennion

doi:10.1117/12.786065

16 May 2008 Embedded fibre Bragg grating array sensors in aluminium alloy matrix by ultrasonic consolidation

Chengbo Mou, Pouneh Saffari, Dezhi Li, Kaiming Zhou, Lin Zhang, Rupert Soar, Ian Bennion

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70044B (2008) https://doi.org/10.1117/12.786065
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

Fibre Bragg Grating (FBG) array sensors have been successfully embedded in aluminium alloy matrix by ultrasonic consolidation (UC) technique. The temperature and loading responses of the embedded FBG arrays have been systematically characterised. The embedded grating sensors exhibit an average temperature sensitivity of ~36pm/°C, which is three times higher than that of normal FBGs, and a loading responsivity of ~0.1nm/kg within the dynamic range from 0kg to 3kg. This initial experiment clearly demonstrates that FBG array sensors can be embedded in metal matrix together with other passive and active fibres to fabricate smart materials to monitor the operation and health of engineering structures.

Citation Download Citation

Chengbo Mou, Pouneh Saffari, Dezhi Li, Kaiming Zhou, Lin Zhang, Rupert Soar, and Ian Bennion "Embedded fibre Bragg grating array sensors in aluminium alloy matrix by ultrasonic consolidation", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70044B (16 May 2008); https://doi.org/10.1117/12.786065

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