SCHALTUNG ZUM ENTNEHMEN VON MESSWERTEN AUS EINEM INKREMENTELLEN LAGEMESSSYSTEM

摘要

A circuit for transferring measured values from an incremental position measuring system wherein the analogue output signals of this incremental position measuring system are digitized and transferred via a counter to a computer which delivers them to an evaluation device. Between the counter and the computer there is provided an intermediate storage in order to avoid that the computer receives instable data during the processing time of the counter between two events, during which the counter passes from one counter state to the next one. By means of a synchronization circuit the computer controls the intermediate storage according to a priority sequence and such that this intermediate storage only reads counter states from the counter during time intervals which are greater than the processing time of the counter or at least equal thereto. Therefore, the computer equally only transmits stable data which can be employed, for instance, at a processing or measuring machine for a high-precision position regulation.