A popular and nondestructive technique is generally employed to calculate the thickness of a material from one side. This technique is called ultrasonic thickness gaging. In the late 1940s, the first ...

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 ...

RAILWAY AGE MARCH 2022 ISSUE: Since 2020, Transportation Technology Center, Inc. (TTCI) has been conducting tests to evaluate the capability of electromagnetic acoustic transducer (EMAT) ...