Photoelectric absolute position measuring device

摘要

A photoelectric absolute position measuring device has a plurality of light sources (4, 5) for the purpose of scanning a coded track (2.1). The two light sources (4, 5) are activated alternately as a function of a scanning signal of a periodic scale (graduation, division, spacing), with the result that the edges (K1, K2) of the code elements of the coded track (2.1) are not projected on the receiver (7) (Figure 1). <IMAGE>