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    • 7. 发明授权
    • Sensor array and method for determining the density and viscosity of a liquid
    • 用于确定液体的密度和粘度的传感器阵列和方法
    • US06543274B1
    • 2003-04-08
    • US09830597
    • 2001-04-27
    • Falk HerrmannDietmar HahnGottfried Flik
    • Falk HerrmannDietmar HahnGottfried Flik
    • G01N900
    • G01N33/2888G01N9/002G01N11/16G01N33/4905
    • A sensor arrangement for ascertaining the density and the viscosity of a liquid is proposed, having an arrangement comprising at least two basic sensor elements, at least one of which can be wetted with the liquid, and having electro-acoustical transducers (6) in the basic sensor elements for generating and detecting surface acoustic waves with predetermined wave modes, from whose propagation behavior along a measurement path a measure for the density and the viscosity of the liquid can be ascertained. Liquid traps (17) for the liquid, which extend in the applicable measurement path, are disposed in the region of at least one of the basic sensor elements, parallel to the direction of propagation of the surface acoustic wave.
    • 提出了一种用于确定液体的密度和粘度的传感器装置,其具有包括至少两个基本传感器元件的布置,其中至少一个基本传感器元件可以被液体润湿,并且在其中具有电声换能器(6) 用于产生和检测具有预定波模式的表面声波的基本传感器元件,可以确定沿着测量路径的传播行为对液体的密度和粘度的测量。 用于在适用的测量路径中延伸的液体的液体捕集器(17)布置在平行于表面声波的传播方向的至少一个基本传感器元件的区域中。