METHOD OF DIAGNOSING METALLIC STRUCTURES AND DEVICE FOR IMPLEMENTING METHOD Russian patent published in 2008 - IPC G01N29/14 

Abstract RU 2339938 C1

FIELD: physics.

SUBSTANCE: at the same time as registration of dynamic deformation, there is registration of the arrival time of an acoustic emission signal at minimum threshold, equal to the minimum noise level, and maximum threshold. From the measured deformation the loading phase is determined, and from the loading phase, each acoustic signal is clustered. The clusterisation target function is determined, and if the number of signals in such a cluster exceeds the given threshold on the number of signals, then that corresponds to presence of a defect, with coordinates equal to the coordinates of the centre of the cluster.

EFFECT: increased operation speed and accuracy of determining coordinates of a defect and reduced number of strain sensors and strain-measuring channels.

2 cl, 5 dwg

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RU 2 339 938 C1

Authors

Stepanova Ljudmila Nikolaevna

Kareev Andrej Evgen'Evich

Kabanov Sergej Ivanovich

Lebedev Evgenij Jur'Evich

Dates

2008-11-27Published

2007-02-14Filed