Lecture Notes Electrical Engineering Volume 21, 2008, pp 287-305

Ultrasonic Sensing: Fundamentals and its Applications to Nondestructive Evaluation

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Abstract

This chapter provides the fundamentals of ultrasonic sensing techniques that can be used in the various fields of engineering and science. It also includes some advanced techniques used for non-destructive evaluations. At first, basic characteristics of ultrasonic waves propagating in media are described briefly. Secondly, basic concepts for measuring ultrasonic waves are described with introductory subjects of ultrasonic transducers that generate and receive ultrasonic waves. Finally, specialized results demonstrating the capabilities of using a buffer rod sensor for ultrasonic monitoring at high temperatures are presented.