Ultrasonic testing (UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse-waves with center frequencies...
Eddy-current testing (also commonly seen as eddy current testing and ECT) is one of many electromagnetic testing methods used in nondestructive testing (NDT) making use of electromagnetic induction to detect and characterize surface and sub-surface...
visual testing (vt) is the oldest and most common nondestructive testing (ndt) techniques. It is typically the first step in the examination process to inspect a variety of product forms including castings, forgings, machined components and weld...