FOSA Installation Considerations
Distributed fiber optic sensing (DFOS) techniques such as Distributed Strain Sensing (DSS), Distributed Acoustic Sensing (DAS) and Distributed Temperature Sensing (DTS) are powerful tools for continuous monitoring of large assets. Consequently, these approaches fit perfectly with specific requirements of structure monitoring, where they fulfill objectives in various areas: • Monitoring strain in structures such as pipelines, cables, bridges, foundation piles, walls, wells and buildings
• Detecting ground movements, slope instability, subsidence, landslides and ice flow in glaciers • Monitoring rock and lining stability during tunnel construction and operation
• Monitoring road and rail track stability
• Monitoring dam and dyke stability
• Detecting activity at the structure (work crews, trespassers, excavation, tunneling)
• Detecting sound and vibrations related to seismic activity, micro-seismic events (rock or ice cracking) and structure movement or cracking
In each of these applications, distributed fiber optic sensing offers clear benefits in the ability to cover a wide area from a central monitoring point, sometimes by taking advantage of spare fibers in existing fiber-optic cables.
Please see attached document for more information.