FIELD: measuring equipment. SUBSTANCE: device comprises an optical measuring head installed on a two-coordinate mechanism and consisting of a lens 2, mirror pyramid 5 with vibratory drive 6, 7, four mirrors 8 with revolution drive 1, 9, 10, 11, screen with slits 13, and movable diaphragm 14, and signal monitor comprised of a measuring circuit made up of a photodetector 17, photocurrent amplifier 19 with APU-20 unit, pulse shaper 21 and indicator 22, two identical centering units made, each, (the 1st one) of two photodetectors 16, 18, photocurrent amplifiers 23, 24, pulse shapers 25, 26, differentiating circuits 27, 28, thyristors 29, 30, transformer 31, chokes 32, 33 and servomotor 34. EFFECT: improved design. 4 dwg
