Advanced Technologies and Methodology for Automated Ultrasonic Testing Systems Quantification

For automated ultrasonic testing (AUT) detection and sizing accuracy, this program developed a methodology for quantification of AUT systems, advancing and quantifying AUT systems image-capture capabilities, quantifying the performance of multiple AUT systems, establishing a guidance document, conducting field tests, and delivering a guidance document for future inclusion in reliability-based design and assessment (RBDA) standards. Improvements for AUT of pipeline girth welds were identified by investigating: imaging techniques for AUT data, modeling and simulation tools for AUT technique development and validation, and quantification methodologies for measuring the performance of AUT systems. Throughout the course of the project, many AUT scans were conducted using both zonal and non-zonal inspection techniques. The quantification methodology provides guidance for quantifying the performance of AUT systems with respect to probability of detection (POD) and accuracy of flaw sizing. Field trials and lab trials demonstrated that a sector sweep of beam angles provides alternative imaging capabilities.