What role does the display unit play in phased array ultrasonic testing?

In phased array ultrasonic testing, the display unit primarily serves the function of visualizing the gathered data. After the ultrasonic signals are transmitted and received by the transducer elements, the data needs to be processed and presented in a way that can be easily understood by the operator. The display unit takes the raw data, which can consist of amplitude, time of flight, and other relevant information, and converts it into graphical representations such as A-scans, B-scans, C-scans, and 3D images. This visualization helps the technician or engineer interpret the results, identify flaws or discontinuities within the material, and make informed decisions based on the condition of the tested component. The ability to visualize data in real-time or after the acquisition significantly enhances the effectiveness of phased array testing compared to traditional ultrasonic methods.