Downland survey & measurement
Exact Survey
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Bill Mowatt
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07836 573656
Precise measurement; London UndergroundMonitoring reportDeformation contour model; gas holder. 3D surface mesh created from laser-scan data compared against design model in Leica 3DReshaperLeica DNA03, automatic precise levelSample monitoring graphTunnel monitoring using retro-reflector targets; London Underground

Monitoring

  • Automated 3D Measurement
  • Downland employ the latest technology to achieve the highest precision. Leica's new TS30 enables us to measure to sub-second and sub-millimeter accuracies. On-board programs allow multiple 3D measurements to be taken very quickly with automated target recognition and motorised drives.
  • Precise Levelling
  • Bar code reading levels return sub-millimetre level measurements to monitor for vertical movements of various different structures. High absolute accuracies are achieved by taking datum measurements from remote stable locations.
  • Laser Surface Deformation Monitoring
  • Surface models derived from laser scan pointcloud information can be compared to either design models or historic data to produce colour or contour drawings highlighting deformation.
  • Automated Monitoring
  • Downland offer a wide range of movement measurement techniques including strain gauges, tilt meters and permanent fully automated robotic devices for measurement of movement on a regular basis.