How can PAUT generate E-scan or S-scan records?

PAUT, or Phased Array Ultrasonic Testing, can generate E-scan or S-scan records through the utilization of data collection techniques, particularly with the help of an encoder or through time-encoded scanning methods.

When employing an encoder, the system records the position of the probe in relation to the scanned surface, allowing for the mapping of ultrasonic data in relation to specific locations on the part being inspected. This positional data is essential for generating detailed E-scans and S-scans, which visually represent the sound field and indicate any potential flaws or discontinuities within the material.

Time-encoded scanning works by capturing data at varying time intervals, effectively allowing the phased array system to differentiate echoes based on both the angle of incidence and the time it takes for the sound waves to return to the transducer. This method enhances the clarity and interpretation of the resulting scans.

Utilizing these techniques enables inspectors to create comprehensive imaging of the inspection area, leading to more accurate detection and characterization of flaws. Therefore, data collection using an encoder or time-encoded scanning is foundational for producing E-scans and S-scans, emphasizing the importance of these methods in the PAUT process.