Position measuring device and assembly with such a position measuring device

摘要

The device has an optical unit (2) which is attachable to objects (1,5) and comprises light source, detector system and optical elements in defined configuration. A measuring standard-reflector unit attachable to object (5) comprises two differently formed regions in a track (3.1) that is optically scannable by optical unit for position sensing. The regions are provided for switching among measuring directions during position sensing. The optical unit generates positional signals in accordance with relative movement of two objects for each measuring direction. An independent claim is included for a measuring system.