A rotor of a thermally loaded turbomachine, in particular of a compressor or a gas turbine, is mounted such that it can rotate about a rotor axis and is concentrically surrounded by a hot-gas duct or cooling-air duct. The coin-shaped IC tag ensures a normal operation and affords a satisfactory feeling of weightiness as a value medium. The second PMOS transistor includes a second gate coupled to the first drain, a second drain coupled to the first gate, and a second source coupled to the first voltage VDD. The seat cushion also has a plurality of spacing members spaced apart and substantially evenly distributed across the second area.