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公开(公告)号：US11982607B2
公开(公告)日：2024-05-14
申请号：US17560612
申请日：2021-12-23
申请人： Friedrich-Alexander-Universitaet Erlangen-Nuernberg , Julius-Maximilians-Universitaet Wuerzburg
CPC分类号： G01N11/08 , G01N2011/0013 , G01N2011/008
摘要： In order to determine a rheological property of a fluid, the fluid is conveyed with a constant volume flow rate through a nozzle and the fluid strand thereby generated is deposited on a substrate. A relative movement takes place between the nozzle and the substrate at a forward feed velocity value. A contour of the liquid strand between the nozzle and the substrate is optically measured, and an extensional viscosity as a rheological property is deduced from knowledge of the volume flow rate, the forward feed velocity value and the contour of the fluid strand.
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公开(公告)号：US20220196534A1
公开(公告)日：2022-06-23
申请号：US17560612
申请日：2021-12-23
申请人： Friedrich-Alexander-Universitaet Erlangen-Nuernberg , Julius-Maximilians-Universitaet Wuerzburg
IPC分类号： G01N11/08
摘要： In order to determine a rheological property of a fluid, the fluid is conveyed with a constant volume flow rate through a nozzle and the fluid strand thereby generated is deposited on a substrate. A relative movement takes place between the nozzle and the substrate at a forward feed velocity value. A contour of the liquid strand between the nozzle and the substrate is optically measured, and an extensional viscosity as a rheological property is deduced from knowledge of the volume flow rate, the forward feed velocity value and the contour of the fluid strand.
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