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

摘要

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. Performance has been demonstrated in field tests of electric power generators, aircrafts and spacecraft Structures, railway tracks, and in rock-bolts for mining and geotechnical engineering.