Series redundant capacitive sensing device

A device for capacitive detection of an object with respect to a detection surface, comprising:

• at least one capacitive detection electrode;
• and
• electronics,
• detection electronics comprising at least one item of electronic equipment, called measurement electronics, for:
• polarizing said at least one detection electrode at an alternating potential (VG), called excitation potential, different from a ground potential;
• measuring a signal, called measurement signal, relative to a capacitance, called electrode-object capacitance, between each detection electrode and said object;
• and
• the detection electronics also comprises, for said at least one measurement electronics, at least one first and one second separate calculation modules, operating in parallel, and supplying at least two independent detection signals for one and the same measurement signal originating from the measurement electronics.