Magnetic flow sensor comprising a magnetic field conductor and a hole diaphragm

US7221156B2 · kind B2 · utility

Assignee

• Forschungszentrum Jülich GmbH · DE

Inventors

• Mikhail Faley · Emmelshausen, DE
• Egon Zimmermann · Eschweiler, DE
• Ulrich Poppe · Cologne, DE
• Knut Urban · Lich, DE
• Horst Halling · Pier, DE
• Helmut Soltner · Jülich, DE
• Bernd Jungbluth · Aachen, DE
• Rolf Speen · Lich, DE
• Walter Glaas · Elsdorf, DE

Key dates

• Filing date: Feb 6, 2004
• Grant date: May 22, 2007
• Expiry date: Feb 6, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S505/846
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a magnetic flow sensor (1, 21, 51) comprising a) a loop-shaped magnetic field conductor comprising a point (2, 22, 32, 52) which expands to form a bar or a film (3, 23, 52), a loop-shaped part (3a, 23a, 53a) and at least one part (4, 24, 54′, 54″) which guides back the magnetic field lines of the probe, b) SQUID (7, 27, 57), c) and a diaphragm (5, 25, 35, 55) comprising a hole (6, 26, 36, 56), whereby the part (4, 24, 54′, 54″) which guides the magnetic field lines of the probe back to the loop-shaped magnetic field conductor is connected to the diaphragm (5, 25, 35, 55).