PHOTOELECTRIC SHAFT POSITION ENCODER Russian patent published in 1997 - IPC

FIELD: optomechanical industry, in particular, means that transduce angular shifts to a code, can be used in photorecording means, target guidance systems, mainly when especially precise conversions of intermittent or monotonous angle shifts are required. SUBSTANCE: encoder uses a moving dial, on which the main raster and bench mark element are made in different radii; a fixed dial is aligned with this dial, on which the main and auxiliary rasters and bench mark element are made in different radii, radiators, photodetectors, flip flops, threshold elements, decoder, comparison unit, discretely controlled current generator, switches and comparator. EFFECT: reduced power consumption. 11 dwg