System for sensing torque of an object, comprising a flange configured to be connected to the object and having a first length along a main axis of a main surface of the flange , wherein the main surface of the flange is of a symmetric shape and the first length defines a diameter of the flange ; and at least one torque sensor device formed over the main surface of the flange and comprising a) a sensing portion ; and b) a plurality of measurement transducers formed over the sensing portion ; and having c) a second length parallel to the main surface of the flange ; and d) a third length parallel to the main surface of the flange ; and wherein the second and third lengths of the at least one torque sensor device are smaller than half of the first length of the flange ; and wherein the plurality of measurement transducers of the at least one torque sensor device is arranged over a transducers area , in particular, a circular transducers area , of the flange ; and wherein the transducers area has i) a smaller thickness in a direction perpendicular to the main surface of the flange than a thickness in the direction perpendicular to the main surface of the flange of at least a portion of the flange outside the transducers area ; characterized in that the transducers area further has ii) a stiffening region having a thickness in the direction perpendicular to the main surface of the flange larger than the thickness of the transducers area in the direction perpendicular to the main surface of the flange . a flange configured to be connected to the object and having a first length along a main axis of a main surface of the flange , wherein the main surface of the flange is of a symmetric shape and the first length defines a diameter of the flange ; and at least one torque sensor device formed over the main surface of the flange and comprising a) a sensing portion ; and b) a plurality of measurement transducers formed over the sensing portion ; and having c) a second length parallel to the main surface of the flange ; and d) a third length parallel to the main surface of the flange ; a) a sensing portion ; and b) a plurality of measurement transducers formed over the sensing portion ; and having c) a second length parallel to the main surface of the flange ; and d) a third length parallel to the main surface of the flange ; and wherein the second and third lengths of the at least one torque sensor device are smaller than half of the first length of the flange ; and wherein the plurality of measurement transducers of the at least one torque sensor device is arranged over a transducers area , in particular, a circular transducers area , of the flange ; and wherein the transducers area has i) a smaller thickness in a direction perpendicular to the main surface of the flange than a thickness in the direction perpendicular to the main surface of the flange of at least a portion of the flange outside the transducers area ; characterized in that the transducers area further has ii) a stiffening region having a thickness in the direction perpendicular to the main surface of the flange larger than the thickness of the transducers area in the direction perpendicular to the main surface of the flange . i) a smaller thickness in a direction perpendicular to the main surface of the flange than a thickness in the direction perpendicular to the main surface of the flange of at least a portion of the flange outside the transducers area ; characterized in that the transducers area further has ii) a stiffening region having a thickness in the direction perpendicular to the main surface of the flange larger than the thickness of the transducers area in the direction perpendicular to the main surface of the flange . <EOS>