Bearing device with sensor for measuring the bearing force of a rotating shaft

摘要

The device has a support structure for supporting a bearing, and a piezoresistive sensor (24) integrated into the support structure. The sensor is arranged in a force flow area of the device. Electrical resistance of the sensor is controlled with contact force of the bearing acting on the sensor such that the contact force of the bearing is electrically gripped at the sensor. The sensor includes multiple piezoresistive thin films, sensor plates or sensor disks. The piezoresistive thin films are made of amorphous carbon i.e. diamond like carbon (DLC). An independent claim is also included for a method for determining static and/or dynamic bearing contact force of a shaft bearing of a statically determined bearing shaft.