CHARACTERIZATION OF AN ULTRASONIC NONDESTRUCTIVE MEASUREMENT SYSTEM

The Electroacoustic Measurement Model (EAM model) is an explicit model of an ultrasonic measurement system. This model is used to quantitatively examine the combined effect of the pulser/receiver, cabling, and transducers by grouping them in a single term called system transfer function. It is shown that the system function obtained in this fashion agrees with the same function as measured in a calibration setup. It is demonstrated that by using the EAM model one can accurately simulate the output signal in an ultrasonic measurement system.