Ultrasonic Testing (UT) is a widely used non-destructive testing (NDT) method that employs high-frequency sound waves to detect internal defects, measure material thickness, and evaluate the integrity of components without causing damage. It is commonly applied to metals, composites, welds, pipelines, pressure vessels, and structural components.

By transmitting ultrasonic waves into a material and analyzing the reflected signals, UT allows inspectors to accurately identify cracks, voids, inclusions, corrosion, and lack of fusion. Due to its high accuracy, depth penetration, and reliability, ultrasonic testing is extensively used in industries such as oil & gas, construction, manufacturing, power plants, aerospace, and infrastructure.