Measuring transducer of vibration-type

US7658115B2 · kind B2 · utility

Assignee

• Endress+Hauser Flowtec AG · CH

Inventors

• Alfred Rieder · Landshut, DE
• Michael Fuchs · Bad Wörishofen, DE
• Wolfgang Drahm · Erding, DE
• Leonhard Probst · Aesch, CH

Key dates

• Filing date: Oct 22, 2008
• Grant date: Feb 9, 2010
• Expiry date: Oct 22, 2028

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/8427
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A measuring transducer includes: a measuring tube vibrating at least at times and serving for conveying medium to be measured; a counteroscillator, which is affixed to the measuring tube on an inlet-side, to form a first coupling zone, and to the measuring tube on an outlet-side, to form a second coupling zone; an exciter mechanism for driving at least the measuring tube; as well as a sensor arrangement for registering oscillations at least of the measuring tube. During operation, the measuring tube executes, at least at times and/or at least in part, bending oscillations about an imaginary bending oscillation axis, which imaginarily connects the two coupling zones with one another. Additionally, at least a first spring element and a second spring element are included, with each of the at least two spring elements being affixed to the measuring tube and the counteroscillator spaced both from each of the two coupling zones as well as also from the exciter mechanism.