A method and system for distance gain sizing using phased array systems

摘要

Herein disclosed is a distance gain sizing (DGS) method and system using an ultrasonic phased array system (DGS PA) to provide an effective defect size of a detected defect within a test object. The phased array system is used to emulate the conventional DGS operation when three most commonly used single beam probes are used. The conventional reference DGS curves are translated to DGS PA curves for specific phased array system and phased array probe after sensitivity calibration. Echo signal from a defect obtained by a phased array operation is compared to the DGS PA curves for an optimal inspection angle to obtain the effect size of the defect.