Title :
P3L-3 Viscosity Measurement of Newtonian Liquids Using The Complex Reflection Coefficient
Author :
Franco, E. E. ; Adamowski, Julio Cezar ; Higuti, Ricardo Tokio ; Buiochi, F.
Author_Institution :
Dept. of Mechatronics Eng., Escola Politecnica da USP, Sao Paulo
Abstract :
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 3.5 MHz at 22.5degC for automotive oil (SAE40) and at 15degC for olive oil. Moreover, measurements of the olive oil were also conducted in the range from 15 to 30degC at 3.5 MHz. The experimental results agree with those provided by a rotational viscometer
Keywords :
oils; ultrasonic reflection; viscosity; 1 to 3.5 MHz; 15 to 30 C; 22.5 C; Newtonian liquids; SAE40; automotive oil; complex reflection coefficient; longitudinal waves; olive oil; rotational viscometer; shear waves; solid-liquid interface; ultrasonic shear reflectance method; viscosity measurement; wave mode conversion; Acoustic measurements; Acoustic waves; Elasticity; Frequency; Impedance; Liquids; Petroleum; Reflection; Ultrasonic variables measurement; Viscosity;
Conference_Titel :
Ultrasonics Symposium, 2006. IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
1-4244-0201-8
Electronic_ISBN :
1051-0117
DOI :
10.1109/ULTSYM.2006.570
