OPTICAL FLAW DETECTOR FOR INSPECTION OF INTERNAL SURFACES OF LIQUID PIPE-LINES

摘要

inspection of state of internal surface of liquid pipe- lines in oil excavating and some other branches of industry. SUBSTANCE: optical flaw detector for inspection of internal surface of liquid pipe-line has laser radiator and photodetector placed in path of rays of luminous flux reflected in symmetry which are placed into case made of two parts joined tight with the aid of cylindrical shell having even number of optically transparent windows with straps of lesser value and capable of turning through angle ϕ = pi/2n, where n is number of transparent windows. Angular reflector is mounted for rotation between radiator and photodetector. EFFECT: possible employment of optical flaw detector for inspection of internal surfaces of liquid pipe-lines. 1 dwg