Structural Health Monitoring Using Fiber Optic Sensors

Fiber Bragg Grating sensors are ideally suited to be integrated in civil structures (bridges, dams, tunnels, buildings,…). Parameters like strain, load and displacement are measured. The potential benefits of structural health monitoring system using FBG sensors include savings in the cost of ownership of a structure thanks to an extended service life of the structure through timely preventative maintenance, reduced routine maintenance costs, reduced remedial repairs,…

Intelligent geosynthetics

Geotextiles can be equipped with fibers containing several Fiber Bragg Grating sensors linked to a measurement device to monitor earthwork structures. Inserted in the geotextile, the optical fibre follows the geotextile strain resulting into a wavelength shift allowing the measurement of the geotextile elongation. In this way the safety of civil-engineering infrastructures can be increased through cost-effective predictive maintenance. Possible application areas are roads, railways, retaining walls, tunnels,…