Non Destructive Testing - NDT

Australia | South Pacific

Crack Testing and Thickness Gauging

Non Destructive Testing

NDT Crack Testing

Magnetic particle inspection (MPI) crack testing involves determining the extent of a crack in ferrous metals which may not be visible to the eye. When the extremities of the crack are located often stop drilling technique is required or other supplementary preventative measures. MPI crack testing can be carried out in the wet or dry using our company’s magnetic particle inspection (MPI) UV crack testing system.

Some cracks can extend above the water line requiring the MPI to be deployed above and below the water line and this is achievable using our MPI systems.

The identified crack can be documented using photography and/or real time video.

NDT Metal Thickness Measuring or Gauging

CDS uses the Double Echo underwater diver hand held system. It is a well known and highly regarded system for accurately measuring a metal thickness underwater in digital readout and can be supported with the aid of underwater photography and video.

This system can be used by divers or for deeper water and hazardous locations can be adapted to our ROV system for remote control use very effectively.

Our NDT instruments are calibration checked prior to each deployment. This ensures accurate measuring information is obtained for our clients.

Metal thickness measuring is commonly performed to determine the current state of the structure when compared to its original design. Typical structures include the following:

  • Bridge and pier foundations
  • Ships hulls
  • Power stations
  • Hydro stations
  • Dams
  • Water storage reservoirs
  • Pipelines
  • Numerous other underwater structures