ROLLER COMPRISING A FORCE SENSOR

摘要

The invention relates to a force sensor (10) for measuring a bearing force (3) of a roller deviating a web of material. Said force sensor (10) comprises a base element (20) on which at least one sensor element (25) is supported. The sensor element (25) comprises at least one plate (40) which can be elastically deformed by the bearing force (3) and is provided with at least one force transducer (42). The sensor element (25) is loaded by a pressure piece (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 annular abutment (35) is provided, against which the pressure piece (29) can be pressed flat. Said abutment (35) is provided around the sensor element (25).