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Home Publications Articles Investigation of the characteristics of acoustic emission signals

Investigation of the characteristics of acoustic emission signals

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The real-time condition monitoring systems of acoustic emission impulses require flexible algorithms for the selection of acoustic emission impulse parameters. Therefore, the research of the characteristics of the acoustic signals, which are generated by the object in conditions close to real mechanisms of destruction, is an urgent task.

The results of acoustic emission signals research collected from the hydro test conducted to BGA 190 gas bottle, which were received by specialists of NTK "Cryogenic technique" together with the group of acoustic emission control of DYNAMICS SPC, are presented in the article.

The loading of the monitoring object was held in four stages. There was a crack at the fourth stage, and the tests were terminated.

Statistic characteristics are defined for each stage of acoustic emission signals, which are corresponded to the object destruction stages. The histograms of the values distribution of such acoustic emission signal parameters as amplitude, energy parameter and duration are constructed. The ranges of amplitudes, energy parameters and durations, corresponding to the destruction stages of the control object, were defined.

 

Kostyukov V.N., Naumenko A.P. Investigation of the characteristics of acoustic emission signals // Innovative technologies in the acoustic emission method. - 2010. - pp.1-13

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Tags: acoustic emission monitoring Date: 11.04.2014
Views: 1157
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