Abstract

The generation and reception of ultrasonic waves are discussed with the aim to improve existing wedge-type angle probes used for nondestructive testing. A number of wedge materials are discussed, and it is shown that constructions using separate transducers for the generation of shear waves and reception of compressional waves in the wedge yield a higher echo-transmission factor, larger signal-to-noise ratio, and a larger monitor signal than constructions using one transducer only.

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