Accuracy Capability of TOFD Technique in Ultrasonic Examination of Welds

摘要

Improved detection capability, improved sizing accuracy, permanent record ofresults, witness of contact and full coverage effectiveness, made TOFD techniquea successfully and promising method in ultrasonic examination of welds.The paper presents data acquired through experiences on artificial and naturaldefects.Comparison is made for Probability Of Detection (POD) relevant to ultrasonicpulse echo technique and radiographic method.