Patent ID: 11946789
Assignee: ENDRESS+HAUSER SE+CO. KG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for radar-based measurement of a fill level of a filling material located in a container, the method comprising:
emitting microwave pulses in a direction of the filling material at a defined clock rate;
receiving reflected microwave pulses after reflection of the emitted microwave pulses at a surface of the filling material;
generating an evaluation signal by sampling the received microwave pulses at a defined sampling rate;
measuring a relation between the clock rate and the sampling rate;
generating an evaluation curve by using the evaluation signal, the relation between the clock rate and the sampling rate, and a predefined target relation; and
determining the fill level by using the evaluation curve,
wherein the evaluation curve is generated by a temporal expansion or compression of the evaluation signal, wherein the compression or the expansion is carried out as a function of a ratio between the measured relation and the target relation.