Patent · US Expired

Device and method for operating a Coriolis mass flowmeter

US7216550B2 · kind B2 · utility

7Cited by

5References

26Claims

0Family size

Assignee

ABB PATENT GMBH · DE

Inventors

Ralf Lesjak · Rosdorf, DE
Rene Friedrichs · Göttingen, DE
Jörg Gebhardt · Mainz, DE
Steffen Keller · Konstanz, DE
Frank Kassubek · Rheinfelden (Baden), DE

Key dates

Filing date	Oct 26, 2004
Grant date	May 15, 2007
Priority date	—
Expiry date	Oct 26, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG01F1/849
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device and a method for operating a Coriolis mass flowmeter with at least one measuring pipe, wherein at least two operative assemblies, which can respectively be operated as an exciter (actuator) and/or as a measuring signal pickup (sensor), are attached to the measuring pipe. The operative assemblies are formed as plunger-type armature sensors with a magnetic core. Each operative assembly is operated either as a sensor or as an actuator or simultaneously as an actuator and as a sensor. Each operative assembly is switched over between the operating mode as a sensor and as an actuator by a switch assigned to it.

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