Patent · US Active

Process for operation of a Coriolis mass flow rate measurement device

US7647841B2 · kind B2 · utility

13Cited by

3References

12Claims

0Family size

Assignee

KROHNE AG · CH

Inventors

Kourosh Kolahi · Duisburg, DE
Ralf Storm · Essen, DE

Key dates

Filing date	Jul 3, 2007
Grant date	Jan 19, 2010
Priority date	—
Expiry date	Jul 3, 2027

Classification

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

Abstract

A process for operating a Coriolis mass flow rate measurement device which has at least one measurement tube, the measurement tube being excited into vibrations with a predetermined excitation frequency and a predetermined excitation phase. The response phase which is achieved thereby and the rate of change of the response phase are detected and the excitation frequency is changed by the frequency amount which arises based on a predetermined function from the detected rate of change of the response phase. This makes it possible to maintain continuous measurement of the mass rate of flow even if two-phase flows occur.

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