Abstract
An estimation method for liquid properties, such as density and viscosity, using a shear horizontal surface acoustic wave sensor is proposed. The method is effective when the bulk modulus of a sample liquid is almost equal to that of water. When the bulk modulus of the sample liquid is different from that of water, the estimated results do not agree with literature values. In this paper, an estimation method for density, viscosity, and bulk modulus was proposed. When the liquid properties are estimated using the numerical simulation results, they agree with literature values. However, the results estimated using the measured results are significantly different from literature values. The reasons for this difference are discussed on the basis of liquid properties. It is necessary to select the optimum reference liquid for the measurements.
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