Measurement transducer of vibration-type

US7475603B2 · kind B2 · utility

Assignee

• Endress+Hauser Flowtec AG · CH

Inventors

• Ennio Bitto · Aesch, CH
• Gerhard Eckert · Weil am Rhein, DE
• Rainer Lorenz · Nettetal, DE
• Alfred Rieder · Landshut, DE
• Christian Schuetze · Basel, CH
• Michal Fuchs · Sankt Goarshausen, DE
• Martin Anklin-Imhof · Füssen, DE
• Wolfgang Drahm · Erding, DE
• Leonhard Probst · Aesch, CH

Key dates

• Filing date: Nov 15, 2006
• Grant date: Jan 13, 2009
• Expiry date: Dec 14, 2026

Classification

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

Abstract

The measurement transducer includes: A measuring tube vibrating at least at times during operation and serving for the conveying of a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece at an inlet end and an outlet tube piece at an outlet end; a counteroscillator, which is affixed to the measuring tube on the inlet end to form a first coupling zone and affixed to the measuring tube on the outlet end to form a second coupling zone; and a first cantilever for producing bending moments in the inlet tube piece and coupled with the inlet tube piece and the measuring tube essentially rigidly in the area of the first coupling zone and having a center of mass lying in the region of the inlet tube piece, as well as a second cantilever for producing bending moments in the outlet tube piece and coupled essentially rigidly with the outlet tube piece and the measuring tube in the region of the second coupling zone and having a center of mass lying in the region of the outlet tube piece. The measurement transducer of the invention is especially suited also for measuring tubes having large nominal diameters of more than 50 mm.