Scanning unit for a position measuring device

摘要

The unit has a scanning structure provided on a carrier. Detector units are combined into two groups (2.9A-2.9D) of detectors so that the units of the same phase belong to the same group of detectors and the units are interconnected for producing a signal. A totality of bars associated with the detector groups and the totality of the bars associated with other detector groups exhibit the same centre of area (F).