Patent ID: 6693423
Filing Date: 2004-02-17
Classification: G01D

Abstract:
An arrangement for angular measurement, comprisingan angle sensor for supplying two sensor signals which are 90Â° phase shifted with respect to each other and have actual amplitude values, and a signal-processing device for computing and/or making available expected amplitude values of the sensor signals in dependence upon predetermined an or measured values of selected circuit and/or operation parameter of the arrangement for angular measurement, computing and/or making available a plurality of graded limit values for a deviation between the expected amplitude values and the actual amplitude values of the sensor signals, by which graded limit values a plurality of ranges of values is fixed for said deviation, comparing the expected amplitude values with the actual amplitude values of the sensor signals, determining the deviation between the expected amplitude values and the actual amplitude values, and determining the range of values in which the determined deviation occurs, and generating an error signal comprising reliability class information about the range of values in which the determined deviation between the expected amplitude values and the actual amplitude values of the sensor signals occurs.