Material Attenuation and Efficiency Factors
The models of wave propagation described in previous chapters treated the underlying fluids and/or solids as perfect, nonattenuating media. Real materials however do exhibit attenuation that must be accounted for in any complete description of an ultrasonic measurement system. Since the processes that generate material attenuation are generally quite complex, we do not attempt to model those processes in detail. Instead we use a simple phenomenological attenuation model and detailed experimental measurements in an explicitly modeled calibration setup.
KeywordsAttenuation Coefficient Efficiency Factor Wiener Filter Paraxial Approximation Calibration Setup
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