The core task of the sensor telemetry system is the contactless data transmission based on a high-frequency electromagnetic field. The rotating part, in most cases inductively fed by the HF field, is used for this purpose. This means that the complete rotating part, consisting of the sensors, the measuring amplifier and the rotor antenna are supplied inductively.
This and the fact of contactless data transmission makes our sensor telemetry maintenance-free!
The stationary part of the sensor telemetry system generates the HF field and establishes the coupling with the rotating part. The data transmitted via the high-frequency field are modulated onto the carrier frequency of the HF field and are decoded by the evaluation unit where they are available as a digital data stream.