Potential low-cost optical fiber Bragg grating sensor systems for structural health monitoring and examples of their application

Potential low-cost strain, vibration and temperature sensor systems based on draw-tower fabricated fiber Bragg grating arrays and spectral high-resolution polychromator interrogation have been developed. Per-formance has been demonstrated in field tests of electric power generators, aircrafts and spacecraft struc-tures, railway tracks, and in rock-bolts for mining and geotechnical engineering.

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