Device for measuring the pressure of a fluid flowing through a pipeline

US10732063B2 · kind B2 · utility

Assignee

• ABB Schweiz AG · CH

Inventors

• Paul Szasz · Heidelberg, DE
• Armin Gasch · Speyer, DE
• Roberto Zucchi · Lenno, IT

Key dates

• Filing date: Dec 8, 2017
• Grant date: Aug 4, 2020
• Expiry date: Jun 9, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01L27/005
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In an embodiment, the present invention provides a device for measuring the pressure p of a fluid flowing through a pipeline, including: at least one primary sensor arranged on an outer periphery of the pipeline for measuring a primary physical measured variable which is dependent on the pressure p, the absolute value of the pressure p being obtainable by offsetting said primary physical measured variable against at least one calibration datum, the at least one calibration datum relating to the geometry and/or to at least one material property of the pipeline; and a calibration datum determining unit and an evaluation unit for determining the pressure p from the primary physical measured variable in conjunction with the calibration datum. The calibration datum determining unit includes a measuring pipe which can be fluidically connected to the pipeline, which differs from the rest of the pipeline in material and/or in cross-sectional geometry.