Dynamic Monitoring Stations

DMS and Avonmouth bridge

Imetrum's Dynamic Monitoring Station (DMS) can be used to monitor the dynamic movement of civil and geotechnical structures. The DMS system is able to measure position (displacement, distance), strain (expansion, contraction, crack opening) and rotation (twist, tilt and bending) of a structure. One of the key advantages of using DMS is that there is no need to access a structure directly to measure it. This eliminates many project delays related to access such as arranging possessions or traffic management, and also delivers safer working practices by keeping staff and vehicles apart as well as eliminating the need to work at height or over water.

The benefits

The DMS is a multi-point dynamic monitoring system that can take measurements similar to those generated by a strain guage, LVDT, tilt meter or Robotic/Automated Total Station. The system is easily scalable, and has been used for testing individual structures from less than 1 m to over 1 km long.

Imetrum's DMS has been independently benchmarked by many companies, including the UK's National Physical Laboratory. Measurement capability is often described as being "the benefits of a non-contact device, with the resolution of a contacting one". It can be supplied with calibration certificates from an independent test house if required.

  • Multi-point dynamic monitoring
  • Real-time measurement of displacement, strain and rotation
  • Genuinely non-contact
  • Monitor from a point of safety
  • Reduce overall monitoring costs
  • Up to 0.01mm resolution
  • Real time operation (up to 400Hz)
  • Supports multiple synchronised cameras
  • Record Videos for off-line analysis
  • Synchronise with other measurements
  • Mains or battery power
  • Rugged weatherproof casing


Displacement Map as HST Passes over Masonry Arch Bridge

Monitoring and Recording Vertical and Longitudinal Displacement of Rail Track in Real Time

0.05mm Resolution Displacement Monitoring of a London Underground Bridge

Case Studies

CS129 - Use of the Imetrum's system in structural monitoring


CS116 - Measuring road bridges


CS115 - Measuring rail bridges


CS112 - Monitoring buildings


CS113 - Long range precision measurement