Vibration type measuring transducer and measuring system formed therewith

US8931346B2 · kind B2 · utility

Assignee

• Endress+Hauser Flowtec AG · CH

Inventors

• Alfred Rieder · Landshut, DE
• Christof Huber · Bern, CH
• Ennio Bitto · Aesch, CH
• Christian Schutze · Basel, CH
• Marcel Braun · Konolfingen, CH

Key dates

• Filing date: Nov 24, 2011
• Grant date: Jan 13, 2015
• Expiry date: Nov 24, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F25/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A measuring transducer having exactly four flow openings, and an outlet-side housing end formed by means of an outlet-side flow divider having exactly four flow openings. A tube arrangement has exactly four curved or bent measuring tubes connected to the flow dividers for guiding flowing medium along flow paths connected in parallel. Each of the four measuring tubes opens with an inlet-side measuring tube end into one of the flow openings of the inlet-side flow divider, and with an outlet-side measuring tube end into one of the flow openings of the outlet-side flow divider. A first coupling element for adjusting eigenfrequencies of natural oscillation modes of the tube arrangement. An electro-mechanical exciter mechanism of the measuring transducer serves for producing and/or maintaining mechanical oscillations of the four measuring tubes. The first coupling element of first type includes, furthermore, a deformation body as well as four connecting struts, of which each is connected both with the deformation body as well as also with exactly one of the measuring tubes; conversely, also each of the measuring tubes is connected with exactly one of the four connecting struts.