FIELD: non-destructive testing.
SUBSTANCE: correlation analysis device comprises the acoustic signal transducers positioned in different points of pipe-line troubleshooted section.
EFFECT: At the outlet of every transducer the frequency filters are installed which divide all acoustic frequency range of the transducer at several subranges in such a way that the upper frequency limit of every subrange is the lower frequency limit of the next subrange All transducer's frequency filter outlets are connected with the summer in such a way that the signal incoming from the frequency filter of the highest subrange is subtracted in the summer from signals of other frequency filters; summers outlets are connected with electronic computer of the .
EFFECT: increasing of the device resolution power
2 dwg
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