公开(公告)号：US20090320568A1

公开(公告)日：2009-12-31

申请号：US12524489

申请日：2008-01-24

申请人： Guido Desie ,  Erik Van Geel ,  Danny Van Gemert ,  Gunter Dieltjens ,  Karl Van Den Bossche

发明人： Guido Desie ,  Erik Van Geel ,  Danny Van Gemert ,  Gunter Dieltjens ,  Karl Van Den Bossche

IPC分类号： G01N11/06 ,  G01N13/02

CPC分类号： G01N11/06 ,  G01N13/02 ,  G01N2013/0241 ,  G01N2015/1493

摘要： Methods and apparatus for measuring viscosity and/or surface tension of a liquid are described in which droplets are formed at a needle or pipette containing a sample of the test liquid and a size-related characteristic of the droplets such as droplet size, volume, diameter, or weight of the test liquid are measured by means of by capturing an image of the droplets and obtaining the size-related characteristic from the captured image. Subsequently or previously, a volume of the same sample of the test liquid is drained from the needle or pipette under pump pressure or a hydrostatic pressure, and an elution time is measured. The method and apparatus allows or includes determining the viscosity from the elution time, and determining the surface tension from the viscosity and the size-related characteristic of the droplet such as droplet size, volume, diameter, or weight of the test liquid.

摘要翻译： 描述了用于测量液体的粘度和/或表面张力的方法和设备，其中在包含测试液体的样品的针或移液管上形成液滴，并且液滴的尺寸相关特性如液滴尺寸，体积，直径 ，或通过捕获液滴的图像并从捕获的图像获得尺寸相关特性来测量测试液体的重量。 随后或之前，在泵压力或静水压力下，从针或移液管中排出相同样品的相同样品的体积，并测量洗脱时间。 该方法和装置允许或包括从洗脱时间确定粘度，以及根据液滴的粘度和尺寸相关特性（例如液滴尺寸，体积，直径或重量）测定表面张力。