METHOD AND ARRANGEMENT FOR CORRECTION OF EVALUATION OF SWITCHING THRESHOLD OF MAGNETIC SENSOR

摘要

PROBLEM TO BE SOLVED: To provide a method and arrangement for correction of evaluation of a switching threshold of a magnetic sensor, capable of correcting error in an output signal as desired. SOLUTION: The method includes determining individual threshold values for each switching edge during the course of a measurement cycle to correct the default threshold value. This occurs by determining respective maximum and minimum values for each switching edge and then averaging them to obtain an average value for each switching edge. Then the average values are stored in a non-volatile memory as individual threshold values for subsequent correction. The arrangement comprises a calculation module for determining respective maximum and minimum values for each switching edge and then averaging them to obtain an average value for each switching edge and a non-volatile memory module. The individual threshold values of a measurement cycle are stored in the memory module. COPYRIGHT: (C)2005,JPO&NCIPI