FIELD: gaging. SUBSTANCE: device has optic-mechanical unit to preset a dimension. Transducer of item edge position is made in the form of fiber-optical fork. Proper ends of light guides is taken into a bundle. Two objectives are secured together with free ends of the light guides. Linear scale is placed on the side of light guide bundle and may be moved perpendicular to optical axis. EFFECT: high accuracy. 6 dwg
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