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Proceedings Paper

High-resolution fast temperature mapping of a gas turbine combustor simulator with femtosecond infrared laser written fiber Bragg gratings
Author(s): Robert B. Walker; Sangsig Yun; Huimin Ding; Michel Charbonneau; David Coulas; Nanthan Ramachandran; Stephen J. Mihailov
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Paper Abstract

Femtosecond infrared (fs-IR) written fiber Bragg gratings (FBGs), have demonstrated great potential for extreme sensing. Such conditions are inherent to the advanced gas turbine engines under development to reduce greenhouse gas emissions; and the ability to measure temperature gradients in these harsh environments is currently limited by the lack of sensors and controls capable of withstanding the high temperature, pressure and corrosive conditions present. This paper discusses fabrication and deployment of several fs-IR written FBG arrays, for monitoring the sidewall and exhaust temperature gradients of a gas turbine combustor simulator. Results include: contour plots of measured temperature gradients contrasted with thermocouple data, discussion of deployment strategies and comments on reliability.

Paper Details

Date Published: 20 February 2017
PDF: 10 pages
Proc. SPIE 10110, Photonic Instrumentation Engineering IV, 101101H (20 February 2017); doi: 10.1117/12.2251037
Show Author Affiliations
Robert B. Walker, National Research Council Canada (Canada)
Sangsig Yun, National Research Council Canada (Canada)
Huimin Ding, National Research Council Canada (Canada)
Michel Charbonneau, National Research Council Canada (Canada)
David Coulas, National Research Council Canada (Canada)
Nanthan Ramachandran, National Research Council Canada (Canada)
Stephen J. Mihailov, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 10110:
Photonic Instrumentation Engineering IV
Yakov G. Soskind; Craig Olson, Editor(s)

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