Ultrasonic measurement of viscosity of liquids

Author

Buiochi, Flávio ; Higuti, Ricardo T. ; Furukawa, Celso M. ; Adamowski, Julio C.

Author_Institution

Dept. Mechatronics, Sao Paulo Univ., Brazil

Volume

1

fYear

2000

fDate

36800

Firstpage

525

Abstract

This paper presents a cell to measure the dynamic viscosity of liquids using a wave mode conversion from longitudinal to shear waves and vice-versa. The method is based on the measurement of the complex reflection coefficient of shear waves at a solid-liquid interface. The reflected waves are measured in the longitudinal mode by a large aperture PVDF (Polyvinylidene Fluoride) membrane. Measurements of the viscosity of automotive oils (SAE90 and SAE140) and corn glucose were made in the range from 1 to 5 MHz. The experimental results are compared with the Maxwell model with two relaxation times

Keywords

ultrasonic measurement; viscosity measurement; 1 to 5 MHz; Maxwell model; PVDF membrane; SAE14; SAE90; automotive oil; complex reflection coefficient; corn glucose; dynamic viscosity; liquid; longitudinal to shear wave mode conversion; relaxation time; solid-liquid interface; ultrasonic measurement; Apertures; Automotive engineering; Biomembranes; Liquids; Oils; Reflection; Sugar; Ultrasonic variables measurement; Vehicle dynamics; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2000 IEEE

Conference_Location

San Juan

ISSN

1051-0117

Print_ISBN

0-7803-6365-5

Type

conf

DOI

10.1109/ULTSYM.2000.922604

Filename

922604