Ultrasonic nondestructive testing, also known as ultrasonic NDT or simply UT, is a method of characterizing the thickness or internal structure of a test piece using high-frequency sound waves. The ...

In the medical applications of ultrasonic imaging, sound waves of high frequency are usually employed to produce in-depth cross-sectional images of internal organs. Special multi-element transducers ...

A video clip from Corus showing what non-destructive testing (NDT) is and the methods commonly used in non-destructive testing of welded steel components to ensure there is no unacceptable defects ...