Measuring transducer of a vibration-type having slits in the coupling elements for tuning eigenfrequency of the measuring tubes

US9097570B2 · kind B2 · utility

Assignee

• Endress+Hauser Flowtec AG · CH

Inventors

• Alfred Rieder · Landshut, DE
• Hao Zhu · Freising, DE
• Ennio Bitto · Aesch, CH
• Gerhard Eckert · Weil am Rhein, DE

Key dates

• Filing date: Apr 2, 2013
• Grant date: Aug 4, 2015
• Expiry date: Sep 4, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/8477
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A measuring transducer serves for producing vibration signals corresponding to parameters of a flowing medium comprises a measuring transducer housing having housing ends and, extending within the measuring transducer housing between its housing ends, a tube arrangement formed by means of at least two tubes. Of the two tubes, at least one tube serves as a measuring tube conveying flowing medium and the other tube is mechanically connected with the tube by means of a first coupling element to form an inlet-side coupling zone and by means of a second coupling element to form an outlet-side coupling zone. At least the first coupling element has in a region extending between the tubes a slit having at least one closed end. Slit has a maximal slit width and a maximal slit length, which is greater than the maximal slit width. Placed partially within the slit is a connecting element, which contacts a slit edge enclosing said slit.