Fluorescence-based distributed chemical sensing for structural health monitoring

Elena I. Sinchenko; W. E. Keith Gibbs; Paul R. Stoddart

doi:10.1117/12.814703

30 December 2008 Fluorescence-based distributed chemical sensing for structural health monitoring

Elena I. Sinchenko, W. E. Keith Gibbs, Paul R. Stoddart

Proceedings Volume 7268, Smart Structures, Devices, and Systems IV; 72681K (2008) https://doi.org/10.1117/12.814703
Event: SPIE Smart Materials, Nano- and Micro-Smart Systems, 2008, Melbourne, Australia

Abstract

Optical fiber distributed sensors hold great promise for corrosion monitoring in large structures. Systems based on absorption losses are relatively well developed, whereas fluorescence systems have been comparatively neglected due to the low efficiency of coupling light emitted in the cladding back into the core. This paper presents a model distributed corrosion sensor based on fluorescence detection by photon counting. The model predicts sufficient sensitivity for practical application under ideal conditions. Preliminary experimental results suggest that additional factors such as scattering at the core-cladding interface and mode distribution effects can have a significant deleterious effect on the performance in practice.

Citation Download Citation

Elena I. Sinchenko, W. E. Keith Gibbs, and Paul R. Stoddart "Fluorescence-based distributed chemical sensing for structural health monitoring", Proc. SPIE 7268, Smart Structures, Devices, and Systems IV, 72681K (30 December 2008); https://doi.org/10.1117/12.814703

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