Capacitive incremental encoders and household appliance having such a

Input field for a domestic appliance with a capacitive encoder with at least three groups (71, 72, 73) of the individual sensor surfaces (7, 7ij), wherein all the sensor surfaces (7i1, 7i2, 7i3, 7i4) of the same group (7i) are connected to each electrically conductive wherein the sensor surfaces (7, 7ij) by an electrically insulating cover plate (2) are covered and parts of capacitors by contact of the cover plate (2) are of variable capacitance, between two sensor surfaces (7ij, 7i (j + 1)) the same group (7i) each have a sensor surface (7kj, 7MJ) of each of the other groups (7k, 7m) is disposed, each group (71, 72, 73) is connected to a voltage source (25) is electrically conductively connected, so that to each group (71, 72, 73) a voltage signal can be applied, and each group (71, 72, 73) is so connected to an evaluation circuit (14), so that for each group (71, 72, 73) one output signal (S) is evaluated, whereby for triggering solution of a step of the incremental encoder (4), a first ...