Method, data set and sensored mixer to sense a property of a liquid

US12276629B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Benjamin Münstermann · Duisburg, DE
• Knut Schumacher · Neuss, DE
• Günter Zilligen · Grevenbroich, DE
• Martin Stottmeister · Neuss, DE
• Robert Bialluch · Willich, DE
• Michael Bahners · Neuss, DE
• Thomas Keller · Elgin, US
• Peter Orda · Remscheid, DE
• Jörg Hahn · Bad Neuenahr-Ahrweiler, DE
• Harald Westkamp · Hattingen, DE
• Andreas Backes · Aachen, DE
• Waleri Wischnepolski · Neuss, DE
• David M. Rudek · Düsseldorf, DE

Key dates

• Filing date: Jul 14, 2021
• Grant date: Apr 15, 2025
• Expiry date: Nov 19, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D11/136
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Sensored mixer, comprising a mixing device for mixing two or more components to produce a mixed liquid at a mixer output, and a property sensor for determining a property of a liquid, the property sensor comprising a) a channel comprising a sensing zone through which the liquid flows; b) two electrodes for generating an electric field of one or more sensing frequencies in the sensing zone; c) a data storage device comprising a pre-stored set of calibration data representing calibration impedance responses measured previously at the one or more sensing frequencies and at different property values of the property of an identical liquid; and d) a device to repeatedly i) generate between the electrodes an electric field of in the sensing zone; ii) sense between the electrodes, a response impedance; iii) derive from the response impedance a property value of the property of the liquid, using the pre-stored set of calibration data representing calibration impedance responses, wherein the property sensor is in fluid communication with the mixer output such that the mixed liquid can flow from the mixer output through the sensing zone. A method for sensing a property of the liquid and a dat…