US 11,988,638 B2
Measuring system for monitoring the material parameters and/or homogeneity of a suspension conveyed through a channel
Marcel Wild, Dresden (DE); Henning Heuer, Dresden (DE); Martin Schulze, Dresden (DE); and Thomas Herzog, Dresden (DE)
Assigned to FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., Munich (GE)
Appl. No. 17/432,292
Filed by Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., Munich (DE)
PCT Filed Jan. 2, 2020, PCT No. PCT/EP2020/050035
§ 371(c)(1), (2) Date Aug. 19, 2021,
PCT Pub. No. WO2020/177932, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 10 2019 202 846.2 (DE), filed on Mar. 1, 2019.
Prior Publication US 2022/0128510 A1, Apr. 28, 2022
Int. Cl. G01N 27/904 (2021.01); G01N 29/04 (2006.01)
CPC G01N 27/904 (2013.01) [G01N 29/04 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A measuring system for monitoring the material parameters and homogeneity of a suspension that is conveyed through a channel, that is electrically conductive or comprises electrically conductive components, and by which an electrode of an electrical storage battery or electrical energy store is configured;
a sensor system configured for an ultrasound inspection has at least one ultrasonic transducer that is arranged at an outer wall of the channel for the emission of sound waves; and
a sensor system that is configured for eddy current detection and that is formed with at least one electrical transmission coil and at least one electrical receiver coil or with a giant magnetoresistive sensor (GMR), an anisotropic magnetoresistive sensor (AMR), a superconducting quantum interference sensor (SQUID), or a Hall sensor is arranged upstream or downstream of the sensor system configured for ultrasound inspection in direction of movement of suspension; and
both sensor systems are arranged between an extruder and a nozzle connected at the channel, through which the suspension as an extrudate will be extracted and
the sensor system configured for the ultrasound inspection and the sensor system configured for the eddy current detection are connected to an electronic evaluation unit and the electronic evaluation unit is configured to recognize flaws in the material parameters and homogeneity of the conveyed suspension by means of the measurement signals detected by both sensor systems.