Abstract: The invention concerns a detection set comprising in combination a sensor (100) comprising three electrodes: two main electrodes (110, 120) covering different zones of the space and the third auxiliary electrode (130), surrounding almost entirely the two main electrodes (110, 120) and processing means (200) connected to said electrodes(110, 120, 130) to power same through controlled voltage levels, operate the signals sampled therefrom as ratios between two signals and deliver partly binary data representing the overlap or non-overlap of one main electrode (110, 120) by comparing the signal sampled thereon with a predetermined threshold and partly analog data representing the percentage of overlap of at least one electrode.

Abstract: A capacitive detection system comprising a capacitive sensor having a conductive electrode disposed to generate an electric field in a detection zone when the electrode is subjected to an electric potential, and an electronic control device connected at least to the first electrode. The first electrode of the capacitive sensor is disposed substantially entirely over a conductive screen connected to the control device.