Patent · US Active

Method for operating a coriolis mass flow rate meter and coriolis mass flow rate meter

US9086308B2 · kind B2 · utility

1Cited by

4References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Thomas Bierweiler · Karlsruhe, DE
Wolfgang Ens · Blankenloch, DE
Felix Hammacher · Pirmasens, DE
Henning Lenz · Karlsruhe, DE

Key dates

Filing date	Dec 14, 2009
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Oct 27, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/8436
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for operating a Coriolis mass flow rate meter and a Coriolis mass flow rate meter including an evaluation device, a measuring tube having a medium flowing therethrough and which is excited so as to perform oscillations, and at least two spaced oscillation pickups spaced apart in the longitudinal direction of the measuring tube to each generate an oscillation signal, wherein a first indicator variable based on the damping of the oscillations of the measuring tube is initially used to detect deposits in the measuring tube and if, based on the first indicator variable, increased damping is established, a second indicator variable is used, which is based on the manifestation of harmonics in the frequency spectrum of an oscillation signal such that reliable detection of deposits and therefore an indication of the state of meters and pipelines in a process engineering installation are advantageously possible.

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