A new method to measure viscosity and intrinsic sound velocity of liquids using impedance tube principles at sonic frequencies

Date

2004-08-01

Author

Mert, Behiç
Campanella, OH

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The attenuation of the sound energy produced by a liquid contained in a cylindrical tube (wave guide) depends on the liquid's viscosity, sound frequency, tube wall thickness, and tube material. By measuring the acoustic impedance of plane sound waves in a cylindrical wave guide, one can obtain the liquid's viscosity. Impedance measurements can also provide sound velocity in the liquid medium as another important physical characteristic. In this study a method using the impedance tube technique is presented. This research details the instrument's principles of operation along pertinent analytical equations and reports experimental results conducted using viscosity standard liquids. It is shown that the instrument can measure both liquid's viscosity and intrinsic sound velocity with reasonable precision. (C) 2004 American Institute of Physics.

Subject Keywords

Instrumentation

URI

https://hdl.handle.net/11511/46519

Journal

REVIEW OF SCIENTIFIC INSTRUMENTS

DOI

https://doi.org/10.1063/1.1771489

Collections

Department of Food Engineering, Article

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Citation Formats

B. Mert and O. Campanella, “A new method to measure viscosity and intrinsic sound velocity of liquids using impedance tube principles at sonic frequencies,” REVIEW OF SCIENTIFIC INSTRUMENTS, pp. 2613–2619, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46519.