METHOD, DATA SET AND SENSOR TO SENSE A PROPERTY OF A LIQUID

• Main Authors: Münstermann, Benjamin, Wischnepolski, Waleri, Bahners, Michael, Hahn, Jörg, Westkamp, Harald, Keller, Thomas, Stottmeister, Martin, Orda, Peter, Zilligen, Günter, Backes, Andreas, Bialluch, Robert, Schumacher, Knut, Rudek, David
• Format: Patent
• Language: English; French; German
• Published: 19.01.2022
• Subjects: CONTROLLING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TESTING

Property sensor for determining a property of a liquid, the property sensor comprisinga) 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; andd) a device to repeatedlyi) 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.A method for sensing a property of the liquid and a data set of calibration data representing calibration impedance responses usable with the sensor and the method are also disclosed.