Advanced Ultrasonic Imaging for Comprehensive Flaw Analysis
Phased Array Ultrasonic Testing (PAUT) builds upon conventional UT by using multiple small transducer elements within a single probe. Each element can be individually pulsed in precise sequences, allowing electronic beam steering, focusing, and sweeping without mechanical probe movement.
This enables faster inspections, comprehensive coverage, and real-time generation of cross-sectional (S-scan) and plan-view (C-scan) images — making subsurface flaw interpretation more visual and accurate. PAUT is particularly useful for detecting cracks, lack of fusion, and corrosion in welds, castings, and composite materials.
BQCIS employs advanced PAUT instrumentation operated by ISO 9712 / ASNT-certified technicians to perform precise volumetric inspections. PAUT often replaces radiography in production and in-service applications, providing safer, faster, and more reliable results.
Key PAUT Activities
Key Benefits of PAUT
High-Resolution Imaging
Generates detailed S-scan and C-scan images that provide clear visualization of internal flaws and weld profiles.
Faster Inspection Speed
Electronically steered beams enable rapid coverage of complex geometries without constant probe repositioning.
Superior Flaw Detection
Multiple beam angles and focal depths improve the probability of detection for difficult-to-locate discontinuities.
Safe & Radiation-Free
Performs volumetric inspections without ionizing radiation, allowing other operations to continue simultaneously.
Success Story
PAUT Replaces Radiography for Pressure Vessel Welds
A pressure vessel fabricator required complete weld inspection coverage but sought to avoid the safety restrictions and downtime of radiography.
BQCIS developed a PAUT inspection procedure qualified to ASME Section V standards. Encoded scans were performed, producing precise S-scan visualizations of each weld zone.
PAUT matched or exceeded RT sensitivity, reduced inspection time by over 60%, and completely eliminated radiation-related safety restrictions.