Ultrasonic Testing

Ultrasonic Testing as a Non-Destructive Testing (NDT) employs high-frequency sound pulses that are emitted from a transducer. The sound wave is induced in to the material through a probe which is usually in contact with the material.

These sound waves propagate through the material, and are reflected back to the probe when they reach an interface. The reflected waves are transmitted back through the probe and connecting leads to a detector which can be either analogue or digital. The sound waves are then displayed as a series of signals on a monitor and the qualified inspector can measure and interpret these signals to allow accurate evaluation of the internal structure of the material.

Ultrasonic Testing can be used not only to indicate a surface or subsurface flaw but also to determine the depth, size and type of flaw. Another advantage of using Ultrasonic Testing is the accurate measurement of the thickness of the material. The method can be applied to most materials provided those materials can transmit sound waves.

Ultrasonic Testing is considered to be a fast and effective way of inspection, ensuring high-sensitivity results.

SGS not only provides Non-Destructive Testing Services for its clients, it also provides Ultrasonic Testing Courses which are available at our NDT Training Center.