Time of Flight Diffraction (TOFD)

Our real time TOFD inspection – RF B-Scan & D-Scan service provides real-time permanent scan images with high sensitivity. TOFD Technology is based on the effect of diffraction. Longitudinal wave are used providing full coverage of material between 2 probes.


  • Simple calibration
  • Fast and simple linear scanning
  • 100% raw data recording
  • Very sure detection of compact and elongated defects including planar shape and sharp edges defects (cracks)
  • Detection is independent of defect orientation
  • Superior inspection reliability
  • Accurate sizing

Phased Array Ultrasonic Testing (PAUT)

Phased Array Ultrasonic Testing (PAUT) is used for flaw detection, sizing, and imaging. PAUT technology is the ability to modify electronically on the acoustic probe characteristics. Probe modifications are performed by introducing time shifts in the signals sent to (pulse) and received from (echo) individual elements of an array probe.


  • Speed; for welds, corrosion and other components, linear (or line scanning)
    scanning can increase scanning speed (and hence reduce costs) significantly
  • Imaging; S-scans, E-scans and other 2D and 3D imaging can give much better
    and more interpretable defect assessments.
  • Multiple angles from one probe at one location are used instead of using a raster motion and multiple wedges.