ROLLER COMPRISING A FORCE SENSOR

摘要

The invention relates to a force sensor (10) for measuring a bearing forc e (3) of a roller deviating a web of material. Said force sensor (10) compri ses a base element (20) on which at least one sensor element (25) is support ed. The sensor element (25) comprises at least one plate (40) which can be e lastically deformed by the bearing force (3) and is provided with at least o ne force transducer (42). The sensor element (25) is loaded by a pressure pi ece (29) into which the bearing force (3) is introduced by means of a spring (32). Said spring comprises a larger range of spring - in the direction of the force - than the elastically deformable plate (4) for the same load. In order to limit the action of the force on the sensor element (25), an annula r abutment (35) is provided, against which the pressure piece (29) can be pr essed flat. Said abutment (35) is provided around the sensor element (25).