A device for measuring apparatuses photoelectric of the lengths and the angles, comprising at least two light sources, the elements of the scanning sensitive to the application and on the other ingredients are

摘要

Device for measuring apparatuses photoelectric digital of the lengths and the angles, comprising at least two light sources, the elements of the scanning sensitive to light and other components which are known. / p & & p & each light source l1, l 2 is associated a branch of the balancing capable of delivering a signal light equal, a single light source l1 and l 2 is always in service and the branch (not used is free of the reaction screw - to - screw of the branch of the balancing used.