Flow-through pressure transducer

US11913850B2 · kind B2 · utility

Assignee

• Wika Alexander Wiegand SE & Co. KG · DE

Inventors

• Markus Diener · Elsenfeld, DE
• Lukas Spieler · Mespelbrunn, DE
• Rolf Bloecher · Miltenberg, DE
• Thomas Rothenbach · Neustadt an der Orla, DE

Key dates

• Filing date: Sep 13, 2021
• Grant date: Feb 27, 2024
• Expiry date: Mar 6, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L11/04
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A measuring system for a physical variable, the measuring system having a housing, a measuring tube having at least one tubular deformation body having a cross-section which is deformed at least partially and which is configured to expand elastically under pressure, two feed sections attached to end sections of the deformation body, two sealing sections for sealingly coupling the measuring system to a process, and two molded support sections to carry the housing. A measuring sensor system measures values of at least one of a stretching or a widening at at least two points on a section of the deformation body. An evaluation unit evaluates measured values of the stretching and widening and outputs them as a measurement signal. The housing at least partially surrounds and stabilizes the measuring tube on an outside and is provided with a vacuum and/or a negative pressure compared to the outside atmosphere.