3    Fundamental Equations Employed in Ultrasonic Design and Applications

3.1      INTRODUCTION

To cover the wide range of uses for ultrasonic energy, the design of ultrasonic systems and of their applications involves the use of many equations. The most significant of these in ultrasonics is the general wave equation, to which many of the others are related. The derivation of the general wave equation and specific solutions are presented in this chapter. These derivations and some solutions are intended to help the reader in understanding the principles involved in the propagation of ultrasonic waves. They also serve as a guide in deriving other equations that may not be readily available to the reader. In addition to its tutorial aspects, ...

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