Flow velocity measurement arrangement

US12372387B2 · kind B2 · utility

Assignee

• HACH LANGE GMBH · DE

Inventors

• Andreas Golitz · Moers, DE
• Manfred Battefeld · Goldkronach, DE
• Axel Leyer · Rheydt, DE
• Sebastian Goertz · Nettetal, DE
• Michael Kussmann · Goldkronach, DE
• Frank Steinhauer · Berlin, DE
• Kathrin Otte · Berlin, DE
• Hartmut Dräger · Berlin, DE

Key dates

• Filing date: Jul 14, 2021
• Grant date: Jul 29, 2025
• Expiry date: Jun 20, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/08
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A flow velocity measurement arrangement (10) for determining the flow velocity of an electrically conductive liquid in a liquid line, comprising an air bubble injector (82) for injecting an air bubble into a liquid flow, a first electrical conductivity measurement cell (30) downstream of the air bubble injector (82) and upstream of a measurement line (40), a second electrical conductivity measurement cell (30′) downstream of the measurement line (40), an evaluation unit (20) which determines the flow velocity of the liquid in the measurement line (40) on the basis of the time-related characteristics of the conductivity measurement results of the two measurement cells (30, 30′).