Simultaneous determination of density and viscosity of liquids based on quartz-crystal resonators covered with nanoporous alumina
Simultaneous determination of density and viscosity of liquids based on quartz-crystal resonators covered with nanoporous alumina
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基于纳米多孔氧化铝覆盖石英晶体谐振器同时测定液体密度和粘度
DOI：
10.1063/1.1942646
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
D. Johannsmann
中科院分区：
文献类型：
--
作者：
Ilchat Goubaidoulline;J. Reuber;F. Merz;D. Johannsmann
石英晶体谐振器涂覆有氧化铝纳米孔层，以便允许同时测量液体的密度和粘度。尽管包含在孔中的液体的运动被锁定到晶体的运动，但位于表面上方的液体经历内部剪切。液体的后一部分耗散能量，从而增加共振的带宽。基于带宽的增加，可以区分粘性负载和质量负载，从而允许独立地确定牛顿液体的密度和粘度。
Quartz-crystal resonators were coated with a layer of alumina nanopores in order to allow for simultaneous measurement of density and viscosity of a liquid. Whereas the motion of the liquid contained in the pores is locked to the movement of the crystal, the liquid located above the surface experiences internal shear. The latter portion of the liquid dissipates energy, thereby increasing the bandwidth of the resonance. Based on the increase in bandwidth, viscous loading and mass loading can be distinguished, allowing for an independent determination of the density and the viscosity of Newtonian liquids.