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Phased Array Ultrasonic Testing (PAUT)

Overview of Phased Array Ultrasonic Testing (PAUT)

Phased Array Ultrasonic Testing (PAUT) is an advanced nondestructive examination technique that utilizes a set of ultrasonic testing (UT) probes made up of numerous small elements, each of which is pulsed individually with computer-calculated timing. This technique can be used to inspect more complex geometries that are difficult and much slower to inspect with single probes. PAUT can be used to inspect almost any material where traditional UT methods have been utilized, and is often used for weld inspections and crack detection. 

Compared to other forms of UT, PAUT has several advantages. PAUT can be conducted more quickly than other forms of UT, often within a fraction of a second. It can easily be used for repeat scans because it has a high degree of repeatability. By emitting beams of multiple different angles sequentially, PAUT is able to create detailed and accurate cross-sections of a part. It is also particularly useful in situations where there is less room for mechanical scanning because it’s able to sweep the beam without moving the probe. 

 

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            • News
              Inspectioneering Staff, August 22, 2017

              The availability of high quality UT data is often the cornerstone for FFS and RBI decisions. As such, the API Subcomittee for Inspection and Integrity Management (SCIIM) has initiated a program for the Qualification of Ultrasonic crack Sizing Examiners that use ultrasonic Phased Array methods (QUSE-PA).

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