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公开(公告)号：US09074976B2
公开(公告)日：2015-07-07
申请号：US13385671
申请日：2012-02-29
CPC分类号： G01N11/12 , B82Y15/00 , G01N2011/0086
摘要： A method for measuring the average viscosity of a test fluid uses calibrated magnetic nanoparticles, with certain chosen hydrodynamic diameters and actual lateral dimensions (e.g. diameters), that are mixed into a small volume of the test fluid and a single magnetic relaxation curve measurement to provide data for viscosity determination. The distribution of hydrodynamic particle sizes of an ensemble of magnetic nanoparticles that are magnetically blocked at room temperature can be determined. Modifications of the method can be used to determine the distribution of viscosities in a complex fluid at the sub-microscopic level providing a novel type of viscosity measurement.
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公开(公告)号：US20120234080A1
公开(公告)日：2012-09-20
申请号：US13385671
申请日：2012-02-29
CPC分类号： G01N11/12 , B82Y15/00 , G01N2011/0086
摘要： A method for measuring the average viscosity of a test fluid uses calibrated magnetic nanoparticles, with certain chosen hydrodynamic diameters and actual lateral dimensions (e.g. diameters), that are mixed into a small volume of the test fluid and a single magnetic relaxation curve measurement to provide data for viscosity determination. The distribution of hydrodynamic particle sizes of an ensemble of magnetic nanoparticles that are magnetically blocked at room temperature can be determined. Modifications of the method can be used to determine the distribution of viscosities in a complex fluid at the sub-microscopic level providing a novel type of viscosity measurement.
摘要翻译： 用于测量测试流体的平均粘度的方法使用校准的磁性纳米颗粒，其具有某些选定的流体动力学直径和实际横向尺寸（例如直径），其被混合到小体积的测试流体中，并且提供单个磁弛张曲线测量值以提供 粘度测定数据。 可以确定在室温下磁性阻断的磁性纳米颗粒组的流体动力学粒径的分布。 该方法的修改可以用于确定在亚微观水平的复杂流体中的粘度分布，提供新型粘度测量。
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