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Railway Monitoring

What is railway monitoring?

Railway infrastructures and systems play a significant role in highly efficient transportation, which is needed to meet the increasing demand in transporting both cargo and passengers. These structures are extremely susceptible to degradation and failure, due to extreme environmental situations under severe loading and working conditions, caused by the traffic growth, heavier axles and vehicles and increase in speed. Innovative sensing technologies based on fiber optic sensors have been utilized for structural health monitoring (SHM), the real time measurement and long-term assessment of structural properties.

A fiber optic structural health monitoring system allows for early-stage damage detection and characterization, which leads to timely remediation and prevention of disastrous failure. The use of fiber optic sensors for structural health monitoring is in great demand due to their inherent distinctive advantages, such as small size, light weight, immunity to electromagnetic systems. Furthermore, the geometry and versatility of these sensors allow them to be integrated into these structures for real time monitoring for sensing critical components of both railways and trains over long distances (up to 20 km).

A fiber optic monitoring system can be used for operation monitoring (train speed and components) and structural health monitoring (rails, sleepers, ballast, bridges, tunnels, rail security etc.) of railway structures. Such a system is being widely used due to its ability to measure physical quantities (such as strains, temperature, displacements, cracks etc.) continuously distributed over the full length of the fiber.

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Railway monitoring for.......

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