Non-Destructive Testing (NDT)
Ultrasonic Test (Flaw Detector)
Ultrasonic Test is a non-destructive testing (NDT) technique.
The basic principle is quite simple: sound waves are propagated into the object being tested, and then reflected back. These reflected waves are analyzed to determine whether the object has any defects.
If the object has internal damage, the reflected ultrasonic waves will be altered—differing from the original waves received—indicating the presence of a flaw.
Ultrasonic flaw detection is commonly used to detect internal defects such as cracks, inclusions, or other discontinuities in metals, plastics, ceramics, and composite materials.