P3L-3 Viscosity measurement of Newtonian liquids using the complex reflection coefficient

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Data

2006-12-01

Autores

Franco, Ediguer E.
Adamowski, Julio C.
Higuti, Ricardo T. [UNESP]
Buiochi, Flávio

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Resumo

This work presents the implementation of the ultrasonic shear reflectance method for viscosity measurement of Newtonian liquids using wave mode conversion from longitudinal to shear waves and vice-versa. The method is based on measuring the complex reflection coefficient (magnitude and phase) at a solid-liquid interface. Viscosity measurements were made in the range from 1 to 3.5MHz at 22.5°C for automotive oil (SAE40) and at 15°C for olive oil. Moreover, measurements of the olive oil were also conducted in the range from 15 to 30°C at 3.5MHz. The experimental results agree with those provided by a rotational viscometer. © 2006 IEEE.

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Reflection coefficient, Shear impedance, Shear waves, Viscosity, Complex reflection coefficient, Olive oil, Reflection coefficients, Rotational viscometer, Solid-liquid interfaces, Wave modes, Phase interfaces, Reflection, Ultrasonics, Vegetable oils, Viscometers, Viscosity measurement, Shear flow

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Proceedings - IEEE Ultrasonics Symposium, v. 1, p. 2257-2260.