Pressure-sensitive capacitive measurement device and method for touch-sensitive and contactless interfaces

Capacitive measurement method for a command interface, utilizing (i) a support plate (2) made from a dielectric material with means for fixing (4) onto a command interface (3), (ii) first electrodes (5) made from a material that is substantially electrically conductive, arranged on a first face of said support plate (2) opposite the command interface (3), said first electrodes comprising first active electrodes (5), (iii) electronic capacitive measurement means (17), this method comprising a step of obtaining data on the approach and/or contact of (an) object(s) of interest (1) by measurement of capacitive coupling with said first active electrodes (5),characterized in that it also comprises a step of obtaining measurements of displacement and/or deformation of said support plate (2) by measurements of capacitive coupling between second active electrodes (6) and said command interface (3), said second active electrodes (i) belonging to a group of second electrodes (6, 7), made from a material that is substantially electrically conductive, arranged on a second face of said support plate (2) toward the command interface (3) and (ii) being connected to said electronic capacitive measurement means (17).