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

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

266
views

0
downloads

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

Suggestions

OpenMETU
Core

A highly sensitive atomic force microscope for linear measurements of molecular forces in liquids PATİL, S; MATEİ, G; DONG, H; HOFFMANN, PM; Karakose, M; Oral, Ahmet (AIP Publishing, 2005-10-01) We describe a highly improved atomic force microscope for quantitative nanomechanical measurements in liquids. The main feature of this microscope is a modified fiber interferometer mounted on a five axis inertial slider which provides a deflection sensitivity that is significantly better than conventional laser deflection based systems. The measured low noise floor of 572.0 fm/root Hz provides excellent cantilever amplitude resolution. This allows us to operate the instrument far below resonance at extreme...
An instrument for the high temperature measurement of the Seebeck coefficient and electrical resistivity GÜNEŞ, Murat; Parlak, Mehmet; Ozenbas, Macit (IOP Publishing, 2014-05-01) A system for the simultaneous measurement of thermoelectric power and resistivity of one and/ or two samples over a temperature range of 300-1000 K in a vacuum chamber is designed and implemented. A sample probe is developed to provide its easy mounting and usage. In addition, two samples can be measured at the same time. Measurement accuracy has been enhanced by beadless thermocouples and micro-heaters that are specifically designed in order to minimize the 'cold-finger effect' and to eliminate some possib...
Ultrafast spectroscopy diagnostic to measure localized ion temperature and toroidal velocity fluctuations Uzun Kaymak, İlker Ümit; McKee, G. R.; Schoenbeck, N.; Smith, D.; Winz, G.; Yan, Z. (AIP Publishing, 2010-10-01) A dual-channel high-efficiency, high-throughput custom spectroscopic system has been designed and implemented at DIII-D to measure localized ion thermal fluctuations associated with drift wave turbulence. A large-area prism-coupled transmission grating and high-throughput collection optics are employed to observe C VI emission centered near lambda = 529 nm. The diagnostic achieves 0.25 nm resolution over a 2.0 nm spectral band via eight discrete spectral channels. A turbulence-relevant time resolution of 1 ...
Overview of the beam emission spectroscopy diagnostic system on the National Spherical Torus Experiment Smith, D. R.; Feder, H.; Feder, R.; Fonck, R. J.; Labik, G.; McKee, G. R.; Schoenbeck, N.; Stratton, B. C.; Uzun Kaymak, İlker Ümit; Winz, G. (AIP Publishing, 2010-10-01) A beam emission spectroscopy (BES) system has been installed on the National Spherical Torus Experiment (NSTX) to study ion gyroscale fluctuations. The BES system measures D-alpha emission from a deuterium neutral heating beam. The system includes two optical views centered at r/a approximate to 0.45 and 0.85 and aligned to magnetic field pitch angles at the neutral beam. f/1.5 collection optics produce 2-3 cm spot sizes at the neutral beam. The initial channel layout includes radial arrays, poloidal arrays...
Monitoring the rheological properties and solid content of selected food materials contained in cylindrical cans using audio frequency sound waves Mert, Behiç (Elsevier BV, 2007-03-01) The attenuation of the sound energy produced by a liquid contained in a cylindrical shaped container depends on the liquid's viscosity, the sound frequency, and the tube wall thickness. By measuring the acoustic impedance caused by the interaction of sound waves moving in a system composed of a liquid material in a cylindrical shaped container information about the viscosity of the liquid material was obtained. Impedance measurements can also provide sound velocity in the liquid medium as another important ...

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.