Godet for heating and advancing yarns

A godet for heating and advancing a yarn and comprising:

• a stationary support member,
• a rotatable member rotatably mounted to said stationary support member and including a tubular jacket having an outer surface upon which the yarn is adapted to run,
• means for heating the jacket,
• at least one sensor mounted to said rotatable member for sensing the temperature of said jacket and producing an output signal indicative thereof, and
• data transmission means for transmitting by induction the output signal from said one sensor to an external control unit, and including a primary coil and a secondary coil, and wherein the primary coil and the secondary coil transmit the supply energy for the one temperature sensor and the measuring sequence, and that the voltage pulses of the data signals are superimposed over the voltage pulses of the supply energy.

A godet for heating and advancing a yarn and comprising:

• a stationary support member,
• a rotatable member rotatably mounted to said stationary support member and including a tubular jacket having an outer surface upon which the yarn is adapted to run,
• means for heating the jacket,
• at least one sensor mounted to said rotatable member for sensing the temperature of said jacket and producing an output signal indicative thereof, and
• data transmission means for transmitting by induction the output signal from said one sensor to an external control unit, and including a primary coil and a secondary coil, and wherein the primary coil and the secondary coil transmit the supply energy for the one temperature sensor and for the measuring sequence and the data signals from the control unit, the data being transmitted by frequency modulation.