Patent · US Active

Method and device for compensation for influences, which interfere with the measurement accuracy, in measurement devices of the vibration type

US7730792B2 · kind B2 · utility

1Cited by

2References

29Claims

0Family size

Assignee

ABB PATENT GMBH · DE

Inventors

Frank Kassubek · Rheinfelden (Baden), DE
Lothar Deppe · Oettingen, DE
Jörg Gebhardt · Mainz, DE
Rene Friedrichs · Göttingen, DE
Steffen Keller · Konstanz, DE

Key dates

Filing date	Dec 18, 2007
Grant date	Jun 8, 2010
Priority date	—
Expiry date	Jul 10, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01F15/024
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for compensation for influences, which interfere with the measurement accuracy, in measurement devices of the vibration type, comprising a measurement tube through which a fluid medium can flow and which is caused to oscillate mechanically, acting as an oscillation body, by an excitation unit, whose oscillation behavior, which changes as a function of the flowrate and/or the viscosity and/or the density of the fluid medium, is detected by at least one oscillation sensor in order to determine the flowrate, wherein the material strain in the measurement tube is detected by means of at least one sensor, from which an indicator value for the influence causing the material strain is calculated in order to correct the measurement signal, by signal processing, from the indicator value obtained in this way.

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