A MEMS and/or NEMS type pressure sensor comprising in a substrate extending in a plane, called the sensor plane: - a fixed part and a movable part being movable with respect to the fixed part, the movable part comprising at least one sensitive element (S, 8, 108, 208) able to be moved or deformed in the sensor plane under the effect of a pressure variation, - detecting means (D, 16, 216) for detecting the movement or deformation of the sensitive element in the sensor plane due to the pressure variation, characterized in that the sensor also comprises: - first actuating means (A1, 24.1, 24.2, 24.3, 24.4, 124, 124.1, 124.2, 224.1, 224.2, 224.1', 224.2') for actuating the movable part, said first actuating means being controlled so as to slave in position the movement or the deformation of the sensitive element (8, 108, 208), first controlling means for controlling the first actuating means which are configured, from signals emitted by the detecting means, to polarize the first actuating means so as to slave in position the movement or the deformation of the sensitive element, wherein the first actuating means (24.1, 24.2, 24.3, 24.4, 124, 124.1, 124.2, 224.1, 224.2, 224.1'n 224.2') comprise at least two pairs of electrodes, each pair comprising a fixed electrode carried by the fixed part and a movable electrode facing it, carried by the movable part, and wherein the sensitive element (108, 208) comprises a face subject to the pressure variations, called the sensitive face, and comprises at least one housing (34, 234.1, 234.2) delimited between two parallel walls (108.2, 108.3) of the sensitive element one of the parallel walls (108.2, 108.3) carrying the sensitive face, all or part of the fixed electrodes of the first actuating means being disposed in said housing (34, 134) and all or part of the movable electrodes of the first actuating means being located on the inner faces (108.22, 108.32) of the walls (18.2, 18.3) of the housing. - a fixed part and a movable part being movable with respect to the fixed part, the movable part comprising at least one sensitive element (S, 8, 108, 208) able to be moved or deformed in the sensor plane under the effect of a pressure variation, - detecting means (D, 16, 216) for detecting the movement or deformation of the sensitive element in the sensor plane due to the pressure variation, characterized in that the sensor also comprises: - first actuating means (A1, 24.1, 24.2, 24.3, 24.4, 124, 124.1, 124.2, 224.1, 224.2, 224.1', 224.2') for actuating the movable part, said first actuating means being controlled so as to slave in position the movement or the deformation of the sensitive element (8, 108, 208), first controlling means for controlling the first actuating means which are configured, from signals emitted by the detecting means, to polarize the first actuating means so as to slave in position the movement or the deformation of the sensitive element, wherein the first actuating means (24.1, 24.2, 24.3, 24.4, 124, 124.1, 124.2, 224.1, 224.2, 224.1'n 224.2') comprise at least two pairs of electrodes, each pair comprising a fixed electrode carried by the fixed part and a movable electrode facing it, carried by the movable part, and wherein the sensitive element (108, 208) comprises a face subject to the pressure variations, called the sensitive face, and comprises at least one housing (34, 234.1, 234.2) delimited between two parallel walls (108.2, 108.3) of the sensitive element one of the parallel walls (108.2, 108.3) carrying the sensitive face, all or part of the fixed electrodes of the first actuating means being disposed in said housing (34, 134) and all or part of the movable electrodes of the first actuating means being located on the inner faces (108.22, 108.32) of the walls (18.2, 18.3) of the housing.