Distributed Acoustic Sensing solution from Sensonic require only a single-mode optical fibre to gather vibration data. The connected Sensonic unit launches laser impulses down the fibre and monitors the signal reflected back.
Acoustic sound waves radiating against the fiber cable create structure-borne deviations. This alters the backscatter of the pulses that are reflected back towards the source.
The change in reflection is measured as a function of the time that has elapsed since the emission of the laser pulse. That’s how the cable becomes a sensor that can monitor vibrations along tens of kilometres of track. The vibration or change in vibration reveals a lot about the railway infrastructure. Various railway insights are revealed by the vibrations detected such as:
Sensonic's DAS system has potential to both improve railroad safety & reduce railway maintenance costs, enabling a more efficient railway.
Sensonic offers some tips on how to secure railway infrastructure from vandalism, theft, terrorism and more.
Sensonic analyses what a flashover is, why flashovers are damaging to the overhead catenary system and more.
Sensonic prevents landslide and rockfall-related railway accidents using DAS, a single sensor that can detect vibrations along 80km of route.
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