Abstract:

The typical block of signal processing in the instrument of diagnostic and construction damage prediction by the acoustic emission (AE) method was proposed, which consists of an inertial detector, comparator, and counter. The correlation between the registered parameters (number of impulses, activity, average level, density of amplitude distribution) and the initial AE flux on the input of the signal was described by the method of linear random processes. On the basis of phenomenon modeling, it was shown that, in an ideal condition, the discrete AE signal fits the gamma distribution. The dynamical approach to the model also attempts to extend it in relation to the three-dimensional coordinates. The deviations of the relation between the registered and proper AE meanings and the method of the results correction are shown.