Process and device for determining viscosity

US7357016B2 · kind B2 · utility

Assignee

• BOEHRINGER INGELHEIM MICROPARTS GMBH · DE

Inventors

• Dirk Kurowski · Gevelsberg, DE
• Christian Schoen · Dortmund, DE
• Ralf-Peter Peters · Bensberg, DE
• Holger Bartos · Dortmund, DE
• Ying Yu · Dortmund, DE

Key dates

• Filing date: Dec 17, 2004
• Grant date: Apr 15, 2008
• Expiry date: Dec 17, 2024

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2011/0086
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A process and a device for determining the viscosity of a fluid are proposed. Very simple and accurate determination is enabled in that the magnetic particles in the fluid are set into vibration by a magnetic field which varies over time. A measurement of the amplitude and/or phase of particle vibration is used to determine the viscosity or an associated quantity, such as the coagulation of blood or the glucose content.