FAQ

Phased Array Ultrasonic Testing (PAUT) is an advanced method of non-destructive inspection that uses a set of ultrasonic testing (UT) probes consisting of multiple small elements.

Phased Array Ultrasonic Testing (PAUT) is an advanced non-destructive inspection method that uses an ultrasonic transducer containing a set of small elements. Each of these elements is pulsed individually in a preprogrammed pattern.

The potential limitation of phased array systems is the higher initial investment costs in terms of instruments and training operators. However, the reduction in time required to perform an inspection and greater overall flexibility is often enough to make up for these higher costs.

Ultrasonic testing uses a variety of non-destructive testing (NDT) techniques that send high-frequency ultrasonic waves through an object or material for flaw detection.

Test specimens are "testing blocks" made from the same material as the target structure that will be inspected. It is first scanned by ultrasound instruments for calibration and to create a reference to compare it to the images of the actual target.

Non-destructive testing (NDT) is a testing and analysis technique used by industry to evaluate the properties of a material, component, structure, or system for characteristic differences or welding defects and discontinuities without causing damage to the original part.

S-scan is short for sectorial scans. It uses fixed apertures to steer through a sequence of angles. This scanning method is unique to PAUT equipment.

A-scan is short for amplitude scan. A-scan data displays the most basic components of ultrasonic wave echoes: The amplitude and the time at which it occurs. In an A-scan image, the horizontal axis represents time and the vertical axis represents amplitude.

Time of Flight Diffraction (TOFD) is an NDT method used to look for flaws in welds. TOFD uses the time of flight of an ultrasonic pulse to find the location of a reflector.