Abstract
In the previous Chapter we modeled an ultrasonic system as a system function, which characterized all the electrical and electromechanical parts of the system, and an acoustic/elastic transfer function, which describes the processes present that are associated with wave motion, such as the generation of pressure waves in a fluid, the transmission of the pressure waves into a solid in the form of elastic waves, the scattering of those elastic waves by flaws, etc. This Chapter will develop the fundamental equations governing both pressure waves in a fluid and elastic waves in a solid. These equations will provide the basis for obtaining, in later portions of this book, explicit mathematical models for the acoustic/elastic transfer function in an NDE ultrasonic measurement.
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Schmerr, L.W. (2016). Wave Motion Fundamentals. In: Fundamentals of Ultrasonic Nondestructive Evaluation. Springer Series in Measurement Science and Technology. Springer, Cham. https://doi.org/10.1007/978-3-319-30463-2_3
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DOI: https://doi.org/10.1007/978-3-319-30463-2_3
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