Method for measuring a flow of goods by means of microwaves, sensor assembly and device with a sensor assembly

摘要

The method involves superimposing the transmitted microwave signal and received signal reflected from the material (G). The resulting low-frequency beat signal is measured. The amount of material flow or the size of the particles is calculated from the amplitude of the beat signal. The speed of the material is calculated from the frequency of the beat signal. An independent claim is included for sensor arrangement.