Device for ascertaining extension length of conveyor belt and force acting on conveyor belt, has signal generator and sensor element, where signal generator is fastened to rotate relative to connection axis

摘要

The device has a signal generator and a sensor element. The signal generator is fastened to rotate relative to a connection axis between the sensor element and the signal generator and is displaced relative to the sensor element by loading a conveyor belt (2). The conveyor belt is wound up on a belt spindle (3) and the signal generator cooperates with the belt spindle. An independent claim is also included for a method for ascertaining extension length of a conveyor belt and force acting on the conveyor belt# a belt retractor.