Patent ID: 8341852
Filing Date: 2013-01-01
Classification: G01D

Abstract:
1. An arrangement for generating a reference impulse for a position measuring device, wherein said position measuring device comprises: a scale with at least one incremental track and at least one reference mark and a scanning unit for generating position signals by scanning said at least one incremental track and for generating an analog reference impulse by scanning said at least one reference mark, said arrangement comprising: a reference impulse memory unit that receives said analog reference impulse and stores said received analog reference impulse as a stored reference impulse; a reference impulse generating unit in communication with said reference impulse memory unit, wherein said reference impulse generating unit receives said stored reference impulse and at least one of said position signals and turns on a reference impulse as a function of said stored reference impulse and an occurrence of a set condition and turns off said reference impulse if a reset condition occurs, and said set and reset conditions are derivable from said at least one of said position signals.