FIELD: physics, measurement.
SUBSTANCE: invention is related to controlling and measuring equipment. Flaw detector includes body that contains television camera and annular system of directed light radiation that consists of light diodes. Light reflector with mirror surface of concave cone shape is fixed to body on brackets. Rays of light coming from light diodes are reflected from mirror surface and are concentrated on internal surface of pipe in the form of narrow annular belt S. Signals coming to computer make it possible to define longitudinal dimensions of defects and coordinates of defects position in pipe length.
EFFECT: detection of defects such as minor burrs, including the ones of longitudinal direction, and definition of dimensions and locations of these burrs.
10 cl, 5 dwg, 1 tbl
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