The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 07, 2026

Filed:

Feb. 02, 2024
Applicant:

Krohne Messtechnik Gmbh, Duisburg, DE;

Inventor:

Jan Förster, Essen, DE;

Assignee:

Krohne Messtechnik GmbH, Duisburg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/60 (2006.01); G01F 1/58 (2006.01);
U.S. Cl.
CPC ...
G01F 1/60 (2013.01); G01F 1/588 (2013.01);
Abstract

A method for operating a magnetic-inductive flowmeter includes: generating polarized measurement data dependent on a polarity of a magnetic field passing through a measuring tube; obtaining a frequency spectrum independent of the magnetic field by a discrete frequency analysis of the polarized measurement data; obtaining a magnetic field-dependent frequency spectrum by a discrete frequency analysis of depolarized measurement data derived from the polarized measurement data; examining amplitude values of the magnetic field-independent frequency spectrum for a magnetic field-independent event, and/or examining amplitude values of the magnetic field-dependent frequency spectrum for a magnetic field-dependent event; and identifying and signaling the presence of a magnetic field-independent event and/or a magnetic field-dependent event. A related magnetic-inductive flowmeter is also disclosed.


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