Absolute position detector with scale

摘要

The position measuring device has a scanning unit (AE) for scanning a sequential pseudo-random code (C) having a series of code elements (C1,C2,C3) extending in the measuring direction (X), each having 2 complementary partial regions. The binary information (B1,B2,B3) for each code element is obtained by comparing scanned signals for both partial regions. An Independent claim for an absolute position measuring method is also included.