Abstract
In the field of nondestructive testing (NDT), phased array ultrasonic testing (PAUT) stands out as a significant advancement, reshaping the way we inspect welds. In this article, we’ll explore the historical progression of weld inspection, from conventional ultrasonic testing (UT) to the rise of PAUT, and the technical aspects and advancements that have positioned PAUT as a game changer, particularly in industry standards set by organizations like the American Welding Society (AWS) and American Society of Mechanical Engineers (ASME). Our journey will include an examination of the core components of PAUT, such as the pulser/receiver, probe technology, and data analysis software. We’ll also delve into the practical applications of beamforming, sectorial and linear scanning, and various scan views used in weld inspection. As we discuss the advantages of PAUT over conventional UT and its integration into industry codes, you’ll gain insight into how this technology has become an essential tool for ensuring the integrity of welds in a range of applications.
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