Tag Archives: Ultrasonic Testing

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 ranging from 0.1-15 MHz, and occasionally up to 50 MHz, are transmitted into materials to detect internal flaws or to characterize materials. A common example is ultrasonic thickness measurement, which tests the thickness of the test object, for example, to monitor pipework corrosion.

Ultrasonic testing is often performed on steel and other metals and alloys, though it can also be used on concrete, wood and composites, albeit with less resolution. It is used in many industries including steel and aluminium construction, metallurgy, manufacturing, aerospace, automotive and other transportation sectors.

FAA Airworthiness Directive for certain Airbus Model A318, A319, and A320 series airplanes

This AD requires repetitive detailed inspections for damage on the fuselage skin at certain frames, and applicable related investigative and corrective actions.

Ultrasonic Flaw Detection

Ultrasonic Flaw Detection – Discussion




Ultrasonic flaw detection is a powerful nondestructive testing (NDT) technology and a well-established test method in many industries. However it can seem complex to a person who has not worked with it.

Modern ultrasonic flaw detectors are small, portable, microprocessor-based instruments suitable for both shop and field use. They generate and display an ultrasonic waveform that is interpreted by a trained operator, often with the aid of analysis software, to locate and categorize flaws in test pieces. The detector will typically include an ultrasonic pulser/receiver, hardware and software for signal capture and analysis, a waveform display, and a data-logging module. Although some analog-based flaw detectors are still manufactured, most contemporary instruments use digital signal processing for improved stability and precision…….

Ultrasonic Machine

Olympus Ultrasonic Inspection System