Method and system for determining process properties using active acoustic spectroscopy

US11598754B2 · kind B2 · utility

Assignee

• ACOSENSE AB · SE

Inventors

• Johannes Kocher · Bad Reichenhall, DE
• Luís Reina · Backa, SE

Key dates

• Filing date: Nov 26, 2018
• Grant date: Mar 7, 2023
• Expiry date: Dec 31, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/102
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

There is provided a method for determining material properties in an active acoustic spectroscopy system, the method comprising: acquiring a multidimensional acoustic spectrum from a material in a container using acoustic spectroscopy; reducing the dimensionality of the acoustic spectrum using a mathematical dimensionality reduction method, thereby forming a reduced acoustic spectrum describing a material state; and determining if the material state belongs to a predetermined material state cluster. There is also provided a system for performing the described method.