Phenomenological model of a response of a piezoelectric probe to acoustic-emission pulses

Parameters and characteristics of signals from a probe play an informative role in the solution of problems of evaluating the strength of structures by acoustic-emission (AE) techniques. The processes of signal formation in probes are complex and of random character, and the physics of formation of AE signals has not been well studied. Measuring processes are accompanied by inevitable noises. Under these circumstances, it is very important to develop a mathematical phenomenological model of AE signals from a probe so as to obtain processing algorithms. The fine structure of AE signals from a probe was analyzed using physical interpretations to develop an adequate model for application in processing algorithms.