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AssigneeBaumer Hubner GmbH
InventorsLothar Wilhelmy, Bernhard Hiller, Jochen Wilhelmy
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A rotary transducer has a detector device with a measurement sensor, used to generate a measurement signal representative of angular position and/or velocity of an object. The detector device has a rotary bearing and a material measure that can be rotated relative to the measurement sensor and is arranged in the measurement field of the latter. A monitoring device, connected to the measurement sensor, which can provide a state signal representative of the state of wear of the rotary transducer, is integrated in the rotary transducer. In order to be able to timely warn of mechanical failure of the rotary transducer, the monitoring device is provided with a register that can permanently store as value representative of the state of wear of the rotary bearing and is formed from the information relating to the angular position and/or velocity contained in the measurement signal.
A rotary encoder having integrated therein a detector device comprising at least one measurement sensor by which, during operation, a measurement signal can be generated that is representative of the angular position and/or velocity of an object which is connectable to the rotary encoder, at least one rotary bearing, and at least one material measure which is arranged rotatable relative to the measurement sensor in the measurement field thereof by means of the rotary bearing, and a monitoring device which is connected to the measurement sensor such that data are transmitted, wherein the monitoring device comprises a counter which can permanently store a value which is representative of the state of wear of the rotary bearing and is formed from the information contained in the measurement signal on the angular position and/or velocity.
A method for monitoring wear of a rotary encoder which during operation senses the angular position and/or velocity of a rotating object connected to the rotary encoder and outputs it as a measurement signal, wherein a state variable representative of the wear condition of a rotary bearing of the rotary encoder is monitored on the basis of the information contained in the measurement signal on the angular position and/or velocity, and a state signal representative of the functional state of the rotary bearing is output by the rotary encoder.
Dependencies are inferred from the claim text.