Filling level measuring system for monitoring filling level in container and material level is determined across reflection signals of electromagnetic radiation

摘要

The filling level measuring system has a transmitter and a receiver (2) also an evaluation unit (4) with a frequency analyzer for evaluating the receiving signal. The frequency analyzer evaluates the frequency difference between a transmitter and a receiver signal. The transmitter frequency lies in the radar or microwave range. The transmitter and the receiver are integrated in a sensor unit (2). The transmitter and-or the receiver is assigned outside the wall of a container (9).