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Senceive FlatMesh - Model PDS-FM3N-LDS-IX -Optical Displacement Sensor Node
FromSenceive Ltd
The FlatMesh Optical Displacement Sensor Node is an instrument which uses optical means to take high precision displacement measurements and pass these through Senceive’s FlatMesh wireless communications network to a FlatMesh Gateway. It can also be combined with Senceive’s world-leading triaxial tilt sensor to obtain high precision tilt measurements that are linked to an external reference.
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Successfully applied in many applications, including those measuring:
- Convergence/divergence for Tunnel/Arch intrados or bridge abutments
- Vertical movements for structural settlement/ heave
- Lateral movements such as rail track slew
- Earthworks and embankment movement
- Fully integrated unit
- Extremely low noise performance
- Optical sensor resolution of 0.1 mm and repeatability of ±0.15 mm
- Resolution of 0.0001° (0.0018 mm/m) and repeatability of ±0.0005° (±0.009 mm/m)
- Integrated long life battery
- 10 year battery life, including when acting as a relay node within the mesh communications network
- Easy to align with target when using the magnet triggered aiming mode
- Integrated temperature sensor
- Versatile mounting options
- Waterproof to IP66 / IP67 / IP68
- Firmware is remotely upgradeable over the air via the gateway reducing costly site visits

