Which is an advantage of using sectorial scans in PAUT?

Using sectorial scans in Phased Array Ultrasonic Testing (PAUT) offers significant advantages, particularly in enhancing defect detection within complex geometries such as weld areas. Sectorial scans work by sweeping the ultrasonic beam through a sector of angles, allowing for dynamic coverage of a larger volume and providing detailed visualization of the inspected area.

This approach is particularly beneficial in weld inspections where defects can occur in different orientations and depths. By utilizing sectorial scanning, technicians can effectively capture data from varying angles and identify critical indications that might be missed with more limited scanning techniques. This capability results in a more comprehensive assessment of the integrity of the weld, highlighting both volumetric and planar defects that could affect the structural soundness.

In summary, the primary advantage of sectorial scans in PAUT lies in their ability to enhance defect detection, especially in complex areas like welds, where multiple angles may present the most accurate and thorough assessment of potential flaws.