Phased Array (PAUT)

Phased Array Ultrasonic Testing (PAUT) is an advanced NDT technique that uses multiple ultrasonic elements electronically steered to create detailed cross-sectional images of weld joints and components. QMS Asset Integrity is NATA-accredited to perform PAUT on both ferritic and stainless steel/duplex welded joints - a capability that sets us apart from many competitors in the Australian market.

PAUT offers significant advantages over conventional UT for weld inspection: faster scanning speeds, improved detection capability through multiple beam angles, and permanent image records that can be reviewed and audited. Our technicians hold relevant certifications and operate state-of-the-art phased array instruments configured for both manual and automated scanning.

From new-construction weld quality verification to in-service crack detection on critical pressure equipment, PAUT delivers the data resolution your engineering decisions require.

PAUT probes contain an array of individual piezoelectric elements (typically 16–64 elements) that can be fired with precisely controlled time delays. This electronic beam steering enables the operator to sweep the beam through a range of angles (sectorial scan) or focus it at different depths, all without physically moving the probe.

The resulting S-scan or B-scan image provides a real-time, colour-coded cross-section of the inspection volume - making flaw sizing, characterisation and positioning far more accurate than single-element UT. All scan data is digitally recorded for post-processing and reporting.