DEVICE FOR IN-TUBE FLAW DETECTION Russian patent published in 2016 - IPC F17D5/00 

FIELD: measurement technology.

SUBSTANCE: invention relates to non-destructive testing of pipeline transport, in particular to devices for intratubal diagnostics, and is intended for georeferencing of measurement results, relating the coordinates of detected defects to the coordinates of earth surface. Engineering solution simplifies the design of the system for in-tube flaw detection and improving its reliability owing to the fact that the in-pipe flaw detection system comprises a flaw detector and passive marker patches arranged along the pipeline and made in the shape of bent metal plates and fixed on the surface of the pipeline while their inner surface rests against the external surface of the pipeline, wherein the thickness of the marking patch is ≥ 0.5 of the pipeline wall thickness, and the flaw detector is equipped with a pipeline wall thickness measurement module.

EFFECT: proposed is a device for intratubal diagnostics.

1 cl, 5 dwg