TY JOUR TI INFLUENCE OF THE PHENOMENON OF DIFFRACTION OF LIGHT ON ACCURACY OF THE AUTOMATED PROCESS OF THE DEFINITION OF GEOMETRIC PARAMETERS OF PROFILE OF OBJECTS KW diffraction KW contactless measurements KW accuracy KW error of measurements KW automation JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Tabekina, N.. AU Chetverikov, B.S. AU Chepchurov, M.S. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov