Patent · US Active

Method for radar measurement of a filling level in a container

US11988541B2 · kind B2 · utility

0Cited by

4References

11Claims

0Family size

Assignee

Endress+Hauser SE+Co. KG · DE

Inventors

Winfried Mayer · Hobrechtsfelde, DE
Manuel Sautermeister · Schopfheim, DE

Key dates

Filing date	Nov 11, 2019
Grant date	May 21, 2024
Priority date	—
Expiry date	Dec 11, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01S13/88
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for radar-based measurement of a filling level of a filling material in a container includes, in successive measurement cycles, generating an evaluation curve, and the relevant current evaluation curve is stored; a first difference curve is formed based on the evaluation curve of the current measurement cycle and a stored evaluation curve of a preceding measurement cycle; and the filling level is determined based on a maximum in the current first difference curve. The filling level is thus established from the difference curve rather than from the evaluation curve, and the filling level can be determined with greater certainty—in particular in the case of filling material having rippled surfaces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.