Chaikovskyi A. Circuit and programmatic-algorithmic methods of intelligent optoelectronic angular sensors improvement.

The object of research: the process of absolute angular position measurement by the optolectronic means. The purpose of research: improving technological, metrological and functional characteristics of optoelectronic angle sensors. Methods of research: analytic geometry, ray optics, theoretical photomentry, image processing algorithms, combinatorics, simulation modelling, experiment, theroy of errors. Theoretical and practical results and innovations: there has been proposed mathematical model of optoelectonic angular sensor which accounts constructive parameters, manufacturing errors and pecularities of optoelectronic measurement; conventional scheme of the angular sensor has been improved by using of two linear photodiode arrays; threshold edge detection method has been improved by the use of gaussian filtration and adaptive threshold selection; technique of edge detection effectiveness estimation for one-dimension shadow images has been proposed; there has been proposed width coding that consist in coding symbols by the width of sector and alternating transparent and opaque sectors. A subject degree of introduction: is used in «Квазар плюс», Ltd, state-run enterprises «ТехАС-К» and «НДІКА». Effectiveness of implantation: there has been improved accuracy and reliability of absolute optoelectronic encoder. Sphere of use: angular measurements in machine building, instrument making, energy sector etc.