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  5. Uncertainty of measurement shift viscosity-elasticity properties of castor oil ultrasound impedance method

Uncertainty of measurement shift viscosity-elasticity properties of castor oil ultrasound impedance method

R.R. Dzhabbarov, O.Sh. Khakimov, G.R. Dzhabbarova
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Acoustic methods of liquids research and uncertainty estimation features of shear viscoelasticity properties of castor oil by the ultrasound impedance method are considered. Results of active and reactive impedance components’ estimation, module’s elasticity estimation, dynamic shear viscosity’s estimation of castor oil at the temperature of 20 °C and the frequencies of 10-150 MHz are given. Formulas, for total standard uncertainty estimation was found by authors. They take into account the correlations between input quantities. Uncertainties of measurements are estimated.
Keywords: uncertainty, measuring, shear, viscosity, elasticity, castor oil, ultrasound, impedance