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Use of Redundant Sensors to Determine the Acoustic Transfer Matrix of a Pump

[+] Author Affiliations
Y. Han, B. A. W. Smith, B. V. Luloff

Atomic Energy of Canada, Ltd., Chalk River, Ontario, Canada

Paper No. PVP2003-2087, pp. 169-178; 10 pages
doi:10.1115/PVP2003-2087
From:
  • ASME 2003 Pressure Vessels and Piping Conference
  • Flow-Induced Vibration
  • Cleveland, Ohio, USA, July 20–24, 2003
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4156-1
  • Copyright © 2003 by ASME

abstract

A series of tests in a small-scale loop containing a centrifugal pump was carried out to develop practical acoustic test and analysis techniques to be used in a manufacturer’s pump test facility during pump qualification testing. To determine the pump transmission characteristics, the effect of high noise levels due to the flow was reduced by driving an external source repeatedly with a swept-frequency signal and performing synchronous, time-domain averaging. A new multi-sensor technique is shown to provide accurate estimates of the pump acoustic transfer matrix. Results confirm that the pump transfer matrix is similar whether the pump is running or not. This indicates that the full-scale pump transfer matrix may be determined with the pump off using a relatively weak external acoustic source and a pump loop system with no cavitation.

Copyright © 2003 by ASME
Topics: Sensors , Acoustics , Pumps

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