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Experimental Characterization of a Remoting System for Dynamic Pressure Sensors

[+] Author Affiliations
Giovanni Ferrara, Lorenzo Ferrari, Gabriele Sonni

University of Florence, Florence, Italy

Paper No. GT2005-68733, pp. 715-722; 8 pages
doi:10.1115/GT2005-68733
From:
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 1: Turbo Expo 2005
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4699-7 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME

abstract

Concerning measurements with dynamic pressure sensors, one of the most interesting aspects is the influence of a remoting system interposed between the sensor and the measurement point. This mounting system, once correctly characterized, allows one to use the same sensor for different measurement points, reducing the total number of sensors used. In addition, in all the applications involving high temperatures (e.g. combustion chamber), a remoting system allows the use of cheaper dynamic pressure sensors with lower operating temperature capability. A remoting system for dynamic pressure sensors made up by a remoting duct, between the sensor and the measurement point, followed by a damping duct has been characterized for different tube lengths. Tests were carried out with two kinds of sources: a diaphragm-less shock tube for the first set of tests and an acoustic speaker for the second. Results are here reported and commented.

Copyright © 2005 by ASME

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