Abstract: Technologies and techniques for analyzing a sensor array for unstable errors, wherein the sensor array emits an analog sensor signal according to a measured variable, a number of error events is identified within a given time interval, the sensor signal having a first slope and a second slope for each of the error events. A diagnostic signal is generated according to a cumulative height of the first and/or the second slopes and is compared with a first threshold value. An error message is generated according to a result of the comparison.

Abstract: A method for analyzing a sensor with respect to unstable errors, wherein a gradient signal is generated based on a sensor signal. Based on the gradient signal, an evaluation unit is used to assign a slope category to a first slope of the sensor signal and a second slope of the sensor signal, the second slope following the first slope. The evaluation unit ascertains a class of error based on the slope categories assigned to the first slope and the second slope.