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Non-Invasive Ultrasonic Interrogation of Dense Slurries

[+] Author Affiliations
Judith Ann Bamberger, Margaret S. Greenwood

Pacific Northwest National Laboratory, Richland, WA

Paper No. HT-FED2004-56885, pp. 741-743; 3 pages
doi:10.1115/HT-FED2004-56885
From:
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 1
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4690-3 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME

abstract

Staff at Pacific Northwest National Laboratory has developed a compact, non-invasive, ultrasonic interrogation technique to characterize fluid or dense slurry during pipeline transport or in process vessels during mixing or settling. The ultrasonic transducers are mounted directly on the outside of the process container or pipe spool piece so the pipe or vessel wall becomes part of the measurement system. The transducers are pulsed to measure the density, speed of sound, and attenuation of the signal which penetrates the pipe wall and through the slurry. These signals are analyzed to determine fluid density, solids concentration, and track changes in particle size. Analysis of multiple signal reflections provides increased measurement sensitivity.

Copyright © 2004 by ASME
Topics: Slurries

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