Titlebook: Ultrasonic Testing of Materials; Josef Krautkr?mer,Herbert Krautkr?mer Book 19904th edition Springer-Verlag Berlin Heidelberg 1990 Materia

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Piezo-electric Methods of Generation and Reception of Ultrasonic Wavesion except that they are excited in the material concerned by the contact face of a . which oscillates with the desired wave-form and frequency. For detection a . has been assumed which likewise has a contact face and which is capable of measuring the sound pressure of an incident wave. Both devices

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The Pulse-Echo Method; Design and Performance of a Pulse-Echo Flaw Detector propagates into a specimen with the ultrasonic velocity corresponding to the material concerned. Part of the ultrasound will be reflected if it strikes an obstacle in the form of an inhomogeneity and, if this is not too large, the remainder will travel further to a boundary of the specimen and will

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