IMPROVED TECHNIQUE AND PHASED ARRAY TRANSDUCER FOR ULTRASONIC INSPECTION OF COARSE GRAINED, ANISOTROPIC WELDS

摘要

A transducer for generating acoustic waves comprising an array of transmitter elements, receiver elements, at least one wedge for the array of transmitter elements and the array of receiver elements. Also provided are transducers wherein the pitch of the transmitter array varies along the length of the transmitter array.