The Nondestructive Testing Approach of Acoustic Emission for Environmentally Hazardous Objects

Classical method of frequency distortion influence exclusion consists of FRF calculation with subsequent adjustment of received signals spectral characteristics. In the article, plane shape objects FRF can be calculated theoretically. Let us do FRF calculations for a long rod. The obtained results confirm high rate of AE signals emission irregularity and large fluctuations of spectrum components. This conclusion is valid for all ceramic materials under test. Acoustic emission method allows detecting and registering of only developing defects, prompting to classify them not by the size but by the danger level.