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http://dx.doi.org/10.3795/KSME-B.2008.32.7.487

Theoretical Analysis for the Measurement of Viscosity and Shear Modulus of Viscoelastic Fluids by Using a Quartz Crystal Oscillator  

Suh, Yong-Kweon (동아대학교 기계공학부)
Kim, Young-Han (동아대학교 화학공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.32, no.7, 2008 , pp. 487-496 More about this Journal
Abstract
Quartz crystal oscillator is frequently used in measuring a very small amount of mass attached to or adsorbed on the surface of an electrode on the quartz plate. The physical principle is that the resonance frequency of the shear vibration of the quartz caused by an applied electric field is a function of the mass. Recently, effort has been tried to measure physical properties of viscoelastic fluids, such as viscosity and shear modulus. This paper presents useful formula that can be used in estimating the properties of viscoelastic fluids. Important finding in this analysis is that the formula can produce multiple values for the physical properties of the viscoelastic materials.
Keywords
Quartz Crystal Oscillator; Viscoelastic Fluid; Viscosity; Shear Elastic Modulus;
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