An optical lengths measuring sensor with an optoelectronic arrangement of photodetectors

摘要

"Optoelectronic arrangement of photodetectors for measuring length". Optoelectronic arrangement of photodetectors in an optical measuring device length incorporated in an optical measuring length where are generated bands of light of period p which move in a direction X perpendicular to the fringes of light, and comprising two photodetectors (16,17 and 18,19) each of two photodiodes (16-19) implanted on an image plane (20), and an electronic circuit for generating electrical signals for measurement without harmonic distortions, and without deviations in period (p) of light affect the measurement result, for which the photodiodes (16-19) on the image plane (20) are distributed according to a formation of sensitive areas (16,17,18 , 19) of shape and size determined (x, h) spaced from each other in series in the direction (X).