▎ 摘　　要

NOVELTY - The device (1) has a transponder (2) for emitting a signal containing the temperature of a rotor and with a transceiver unit (4) interacting with the transponder and a receiver (5) for wirelessly receiving the signal from the transponder. The transponder comprises an oscillating circuit which has an electrical coil (8) acting as an antenna and a temperature-dependent electrical load (3). The temperature-dependent electrical load of the transponder is designed as a percolation element which has an electrical percolation path formed by graphene flakes embedded in an electrically non-conductive matrix material e.g. a plastic or a cement, are dispersed, or which form an electrically conductive matrix material in which electrically non-conductive platelets are dispersed. The transponder is an radio frequency identification (RFID) transponder e.g. a passive RFID transponder, and the transceiver unit is an RFID transceiver. USE - Measuring device for detecting temperature on rotor used in drive device e.g. electric machine (claimed). ADVANTAGE - The temperature-dependent electrical load of the transponder can be made flatter and lighter. The reduced weight of the transponder means that no additional imbalance is generated by the transponder. Due to the lower weight, smaller centrifugal forces act on the temperature-dependent electrical load, so that the mechanical requirements for fastening the temperature-dependent electrical load are reduced. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a drive device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic block diagram of measuring device for detecting a temperature on a rotor. Measuring device (1) Transponder (2) Temperature-dependent electrical load (3) Transceiver unit (4) Receiver (5) Electrical coil (8)