PAUT – Phased array ultrasonic testing

Phased array ultrasonics (PA) is an advanced method of ultrasonic testing that has applications in industrial nondestructive testing. Common applications are to find flaws in manufactured materials such as welds.

Single-element (non-phased array) probes, known technically as monolithic probes, emit a beam in a fixed direction. To test or interrogate a large volume of material, a conventional probe must be physically scanned (moved or turned) to sweep the beam through the area of interest. The PA probe consists of many small ultrasonic transducers, each of which can be pulsed independently.

Phased array is widely used for nondestructive testing (NDT) in several industrial sectors, such as construction, pipelines, and power generation. This method is an advanced NDT method that is used to detect discontinuities i.e. cracks or flaws and thereby determine component quality. Due to the possibility to control parameters such as beam angle and focal distance, this method is very efficient regarding the defect detection and speed of testing.

Apart from detecting flaws in components, phased array can also be used for wall thickness measurements in conjunction with corrosion testing. Phased array can be used for the following industrial purposes: inspection of welds, thickness measurements, corrosion inspection, bolt inspection, inspection of wheels and axle, composite materials…

Other methods

Radiographic testing

Radiography is a process of recording inner and outer defects in three-dimensional objects on a two-dimensional film plane.

Ultrasonic testing

Ultrasonic testing is based on the fact that solid materials are good at carrying sound waves.

PAUT- Phased array ultrasonic testing

An advanced method of ultrasonic testing that has applications in industrial nondestructive testing.

Magnetic testing

With the use of magnetic flux it is possible to find flaws on the surface of the object as well as directly below the surface.

Penetrant testing

Penetrant testing is one of the first widely accepted non-destructive testing method.

Visual inspection

Visual inspection is the oldest and the most common non-destructive testing method.



Welder certification is done following the latest European standards and their requirements for the following welding processes: MIG, MAG, REL, TIG, gas welding


Welder training is done according to our own program in our welding school in Sesvete using the following methods: REL, MAG, MIG, TIG, gas welding

Supervision and control

Supervision and control over the execution of welding works.

Non-destructive testing

Visual testing (VT), penetrant testing (PT), magnetic testing (MT), ultrasonic testing (UT), phased array ultrasonic testing (PAUT)…

Creating technical documentation for welding

WPS list, welding procedure qualification record (WPQR), welding technology

Mechanical calculation

In cooperation with our partners we offer: static calculation of construction, dynamic calculation of construction etc.