Measurement of unsteady gas temperature with optical fibre Fabry-Perot microsensors

Kilpatrick, J. M. and MacPherson, W. N. and Barton, J. S. and Jones, J. D. C. and Buttsworth, D. R. and Jones, T. V. and Chana, K. S. and Anderson, S. J. (2002) Measurement of unsteady gas temperature with optical fibre Fabry-Perot microsensors. Measurement Science and Technology, 13 (5). pp. 706-712. ISSN 0957-0233

Abstract

We describe the application of thin-film optical fibre Fabry-Perot (FFP) microsensors to high-bandwidth measurement of unsteady total temperature in transonic gas flows. An aerodynamic probe containing two temperature sensitive FFP microsensors was deployed in the rotor exit flow region of a gas turbine research rig. Measurements reveal gas temperature oscillations typically 4 K peak to peak at the blade passing frequency of 10 kHz with components to the third harmonic detected in the power spectrum of the temperature signal.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 30 Nov 2007 11:47
Last Modified: 03 Dec 2017 23:54
Uncontrolled Keywords: Fabry-Perot cavity; gas temperature; gas turbine; optical fibre sensor; turbomachinery; unsteady temperature; computational fluid dynamics; film; gas flow; optical fiber
Fields of Research : 09 Engineering > 0901 Aerospace Engineering > 090101 Aerodynamics (excl. Hypersonic Aerodynamics)
09 Engineering > 0915 Interdisciplinary Engineering > 091501 Computational Fluid Dynamics
09 Engineering > 0906 Electrical and Electronic Engineering > 090605 Photodetectors, Optical Sensors and Solar Cells
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1088/0957-0233/13/5/308
URI: http://eprints.usq.edu.au/id/eprint/14415

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