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Calibration of Rugged, Renewable and Fast Response Temperature Probes in a Hypersonic Flow Facility

[+] Author Affiliations
H. Mohammed, H. Salleh, M. Z. Yusoff

Universiti Tenaga Nasional, Kajang, Selangor, Malaysia

Paper No. IMECE2009-10925, pp. 1049-1060; 12 pages
doi:10.1115/IMECE2009-10925
From:
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4382-6 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME

abstract

This paper presents a dynamic calibration technique of rugged, renewable and fast response temperature probes (TP) in a hypersonic testing facility. Two types of scratch were used, mainly abrasive papers with different grit sizes and scalpel blades with different thicknesses to form the probe junction. The effect of scratch technique on probe’s thermal product is investigated. The probes were tested and calibrated in the test section and in the end wall of UNITEN shock tube facility at different axial and radial locations. It was observed that the thermal product of a particular TP depends on the Mach number, surface junction scratch technique, junction location as well as on the enthalpy conditions. It was also noticed that using scalpel blade technique with a particular blade size gives consistent thermal product values. Thus, it does not require an individual calibration. However, for TP whose junction created using abrasive paper technique with different grit sizes, a calibration for each TP is likely to be needed. The results from shock tube tests have shown that, these probes have a response time on the order of microseconds (50 μs) with a rise time less than (0.5 μs), and were suitable for making the heat transfer measurements in highly transient conditions.

Copyright © 2009 by ASME

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