Patent · US Active

Method for detecting potential faulty states on an FMCW-based filling level measuring apparatus

US11650302B2 · kind B2 · utility

1Cited by

1References

10Claims

0Family size

Assignee

Endress+Hauser SE+Co. KG · DE

Inventors

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

Key dates

Filing date	Jan 14, 2019
Grant date	May 16, 2023
Priority date	—
Expiry date	Jul 29, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01S7/4091
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed is a method for detecting a faulty state of an FMCW-based fill level measuring device. For this, a correlation coefficient is ascertained by correlation, especially cross correlation, of the measurement signal with a reference signal. The faulty state is accordingly detected when the correlation coefficient subceeds a predefined minimum value. In this way, the functioning of the fill level measuring device can be monitored with a degree of safety allowing the fill level measuring device to be applied also in process plants and measuring environments, which require extremely reliable measuring apparatuses, and measurement data.

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