Abstract: A contact force sensor device (10) comprises a gas-inflatable balloon (20) 5 arranged to switch from a deflated state (D) to an inflated state (J) in which it protrudes out of a support member (11); a valve assembly (34) to inflate/deflate the gas-inflatable balloon (12) with a gas; a detector (41) of a force-related value related to a force acting on the inflated gas-inflatable balloon (20) including a membrane (22) due to a contact with a wall (90) 10 outside of support member (11); a processing unit (60) configured to receive a detection signal (45) and to consequently calculate a contact force signal (54) according to a predetermined function; and a notification device (70) configured to receive the contact force signal (54) and to notify it to a user.

Abstract: A contact force sensor device (10) comprises a gas-inflatable balloon (20) 5 arranged to switch from a deflated state (D) to an inflated state (J) in which it protrudes out of a support member (11); a valve assembly (34) to inflate/deflate the gas-inflatable balloon (12) with a gas; a detector (41) of a force-related value related to a force acting on the inflated gas-inflatable balloon (20) including a membrane (22) due to a contact with a wall (90) 10 outside of support member (11); a processing unit (60) configured to receive a detection signal (45) and to consequently calculate a contact force signal (54) according to a predetermined function; and a notification device (70) configured to receive the contact force signal (54) and to notify it to a user.