Phased Array & TOFD Inspection
In ultrasonic inspection, information about the orientation of the defects and their location in the material can be obtained at once with Phased Array, as opposed to performing a 3-dimensional inspection for the detection of irregularities in the material.

In this method, 8-16-32-64…. element is found. The firing order of the elements can be adjusted as desired, allowing them to focus on a specific region. This method has many advantages over the traditional pulse-echo method.

Advantages of Phased Array Technique:
-High-speed inspection and imaging capability
-Ability to perform ultrasonic scanning at different angles

Ability to inspect complex geometries and thick materials
-Precision inspection capability in austenitic materials and bi-material welds

The TOFD method (Time of Flight Diffraction) is a method used for error detection and error sizing. This method is a very sensitive and fast method used to detect discontinuities in welded fabrications.

The TOFD principle allows mapping the position of the fault section. Ultrasonic sound waves refract rays from the ends of discontinuities. The dimensions of the discontinuity are calculated by measuring the time at which ultrasonic sound waves are refracted. Unlike standard ultrasonic inspection, this method is not amplitude dependent, so it is not affected by constraints such as probe position, orientation of discontinuities, irregular or changing material surfaces, or poor grip. In addition, this technique is used to collect information about the material structure today, and thanks to the results obtained, it provides many advantages in terms of cost to manufacturers and producers.