Linear Systems and the Fourier Transform
In Chap. 1 we saw that an ultrasonic system has many components. Those components individually can be complex electromechanical systems, such as ultrasonic transducers. To model each of the elements that go into an ultrasonic system and how they work together to produce a measured response is a challenging task indeed. In this chapter we present a very general modeling framework of linear time-shift invariant (LTI) systems which we use to describe a complete ultrasonic NDE measurement system. Many of the remaining chapters provide details for this general framework which will be combined to produce an explicit model of the entire ultrasonic measurement process.
KeywordsImpulse Response Function Ultrasonic System General Modeling Framework Elastic Wave Pulse Time Domain Pulse
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