Evident Ultrasonic Inspection Equipment
Weld Defect Imaging and Characterization Using PAUT and TFM Ultrasonic NDT with Sonatest
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Fast and reliable, PAUT technique has dramatically improved the probability of detection of defects inside a weld and became over the years a code compliant replacement solution to the radiographic testing. Nowadays, FMC-TFM technologies can improve even further defects characterisation when used in conjunction with code compliant PAUT solutions.

Ultrasonic Testing (UT) methodology has been used as a proven non-destructive technology to assess the volumetric integrity of welded material for decades. UT technology has evolved since and new developments like the Phased Array ultrasonic testing (PAUT) technology offers many advantages compared to the conventional UT technique:
• large coverage
• high resolution
• good sensitivity
• fast processing
• repeatable and reliable
• traceable data (encoding)

Those advantages dramatically improved the probability of detection (POD) of defects in welds, making the PAUT a very efficient and applicable solution that has been approved by standards to replace the classic radiographic testing (RT) methodology. While it took time to catch up in the field, the PAUT solutions are now widely considered as the go-to technique for advanced inspections. It is widely accepted by quality managers working in a manufacturing environment and by integrity engineers that want to maintain production workflow and extend equipment useful life within a safe environment.

Read the paper from Sonatest.

Curtiss Wright Nuclear