Noninvasive Measurement of Acoustic Properties of Fluids Using Ultrasonic Interferometry Technique

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A swept-frequency ultrasonic interferometry technique is used for noninvasively determining acoustic properties of fluids inside containers. Measurements over a frequency range 1-15 MHz on six liquid chemicals are presented. Measurements were made with the liquid inside standard rectangular optical glass cells and stainless steel cylindrical shells. A theoretical model based on one-dimensional planar acoustic wave propagation through multi-layered media is employed for the interpretation of the observed resonance (interference) spectrum. Two analytical methods, derived from the transmission model are used for determination of sound speed, sound attenuation coefficient, and density of liquids from the relative amplitude and half-power peak width ... continued below

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10 p.

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Han, W.; Sinha, D.N.; Springer, K.N. & Lizon, D.C. June 15, 1997.

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Description

A swept-frequency ultrasonic interferometry technique is used for noninvasively determining acoustic properties of fluids inside containers. Measurements over a frequency range 1-15 MHz on six liquid chemicals are presented. Measurements were made with the liquid inside standard rectangular optical glass cells and stainless steel cylindrical shells. A theoretical model based on one-dimensional planar acoustic wave propagation through multi-layered media is employed for the interpretation of the observed resonance (interference) spectrum. Two analytical methods, derived from the transmission model are used for determination of sound speed, sound attenuation coefficient, and density of liquids from the relative amplitude and half-power peak width of the observed resonance peaks. Effects of the container material and geometrical properties, path-length, wall thickness are also studied. This study shows that the interferometry technique and the experimental method developed are capable of accurate determination of sound speed, sound attenuation, and density in fluids completely noninvasively. It is a capable and versatile fluid characterization technique and has many potential NDE applications.

Physical Description

10 p.

Notes

OSTI as DE00760112

Medium: P; Size: 10 pages

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  • 8th International Symposium on Non Destructive Characterization of Materials, Boulder, CO (US), 06/15/1997--06/20/1997

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  • Report No.: LA-UR-97-2018
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 760112
  • Archival Resource Key: ark:/67531/metadc718249

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  • June 15, 1997

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  • Sept. 29, 2015, 5:31 a.m.

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  • April 6, 2017, 6:48 p.m.

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Han, W.; Sinha, D.N.; Springer, K.N. & Lizon, D.C. Noninvasive Measurement of Acoustic Properties of Fluids Using Ultrasonic Interferometry Technique, article, June 15, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc718249/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.