Ultrasonic Inspection of Tubes Without Rotation

Abstract

Ability to perform ultrasonic inspection without probe rotation significantly simplifies the delivery system and decreases the inspection time by increasing axial speed of the inspection system. Different approaches are analyzed: normal beam tube-like probe covering simultaneously 3600, similar angle cone-like probe for circumferential flaw detection, standard axially positioned probe with attached conical mirror, standard shear wave probe positioned circumferentially at large incident angle and covering 3600 due to multiple reflections within the tube wall, special circular transducer with curved dents covering 3600 and used for axial flaw detection.