Phased Array Ultrasonic Testing (PAUT) uses multi-element transducers to create and transmit ultrasonic beam fronts at a variety of angles simultaneously to identify and size defects across a variety of materials.
Phased array uses 16 to 128 elements (small transducers in one probe) to create ultrasonic beam fronts that encompass up to 40 different angles into the part under examination. This creates distinct advantages over conventional ultrasonics by giving the technician more coverage over the area interest. This enables inspections to be much faster and more efficient.
Phased Array Ultrasonic Testing is used all over the petrochemical industry as an alternative to radiography in the following codes:
ASME Section VIII
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