Method for evaluating measurement signal of capacitive limit switch, involves modifying deviations of measurement values, determining maximum value of deviations, and evaluating measurement signal on basis of maximum value

摘要

The method involves filtering and digitizing a rectified measurement signal with a low pass filter (6) in an analog/digital transducer (7), where measurement values (8) are provided as a non-equidistant time series, and time intervals are shorter than end of the time series. A weighted mean value (10) is formed from the measurement values using a weight table. Deviations of the measurement values are modified by the mean value. A maximum value (11) of the determined deviations is determined, and the measurement signal is evaluated on the basis of the maximum value.