Simultaneous viscosity and density measurement of small volumes of liquids using a vibrating microcantilever.

ABSTRACT: Many industrial and technological applications require precise determination of the viscosity and density of liquids. Such measurements can be time consuming and often require sampling substantial amounts of the liquid. These problems can partly be overcome with the use of microcantilevers but most existing methods depend on the specific geometry and properties of the cantilever, which renders simple, accurate measurement difficult. Here we present a new approach able to simultaneously quantify both the density and the viscosity of microliters of liquids. The method, based solely on the measurement of two characteristic frequencies of an immersed microcantilever, is completely independent of the choice of a cantilever. We derive analytical expressions for the liquid's density and viscosity

SUBMITTER: Payam AF 

PROVIDER: S-EPMC5450008 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature