Phased Array Ultrasonic Testing (PAUT) is one of the key developments in non-destructive testing, and it provides an unprecedented level of information on the internal integrity of materials. Through the use of various ultrasonic elements and electronic time delays, PAUT can provide real-time images that clearly identify flaws, cracks, and weld discontinuities. The method is commonly used in marine, oil and gas, and power generation industries to promote safety and performance. PAUT, being capable of providing accurate information and high-quality images, is an essential instrument in structural testing, material testing, and quality testing in industry.