A. A. Popkov

PHASE-DIFFERENCE LOCATION USED TO DETERMINE THE DIRECTION OF ACOUSTIC EMISSION SOURCE

The paper describes the usage patterns of closely spaced acoustic emission transducers designed to determine the direction of propagation of acoustic emission impact by calculating the phase delays between the transducers. As a criterion for determining the reliability of the phase delay, correlation analysis is used. The experimental data have established a dependence between the direction of acoustic wave emission and the ratio of phase delays between the transducers.

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