METHOD OF NON-THRESHOLD AUTOMATIC INTELLECTUAL REGISTRATION OF ACOUSTIC EMISSION SIGNALS BY NON-DESTRUCTIVE CONTROL DEVICE Russian patent published in 2018 - IPC G01N29/14 

FIELD: physics.

SUBSTANCE: using: for non-destructive testing with the acoustic emission method (AE). Summary of the invention is that registration of acoustic emission pulses is performed without the use of a threshold limitation in the estimation of the parameters of the pulses of acoustic emission and noise in time intervals of a certain duration, the acoustic emission pulses are recorded on the basis of a combined criterion if one of the two statistical hypotheses is satisfied - the hypothesis that the sixth-order moment is zero and the hypothesis of the difference in the dispersion of acoustic emission signal samples calculated in neighbouring time windows, the time of the onset of the acoustic emission pulse is determined within the allocated time interval by the cumulative sum method.

EFFECT: technical result: simplification of the procedure for conducting AE control through automatic non-threshold data recording, an increase in the sensitivity of the AE method due to the recording of pulses with an amplitude on the order of the noise level, as well as an increase in the accuracy of the AE sources coordinates determination by determination of the AE pulse beginning time.

4 cl, 6 dwg