FIELD: mechanical engineering.
SUBSTANCE: method comprises recording pulses of acoustic emission, converting the pulses of acoustic emission into a stochastic signal that is composed of the root-mean-square value of the pulses of acoustical emission, and calculating the normalized autocorrelation function from the root-mean-square value. The extent of wear can be judged by the width of the spectral characteristic of the converted signal of acoustic emission.
EFFECT: enhanced quality of monitoring.
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