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Proceedings Paper

Fiber optic sensor technology for air conformal ice detection
Author(s): Aris A. Ikiades; David J. Armstrong; George G. Hare; Mary Konstantaki; Samuel David Crossley
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Paper Abstract

Ice accretion on flying surfaces affects the aerodynamic performance and handling qualities of aircraft, and may require different pilot corrective action, dependent upon the surface that ice is accreting onto. The current methodology for ice detection usually relies on an indirect method, normally based on ambient air temperature, and liquid water content. When a pre-set threshold level is reached, the ice protection system is activated, whether or not ice is accreting on critical surfaces. This method is not cost effective or efficient for an ice protection system. Air Conformal Ice Detection System (ACIDS) obviates these problems by using a 'direct’ method of detection and measurement the presence and thickness of ice. This paper outlines some of the preliminary experimental work done on the optical properties of ice grown in an icing tunnel on the leading edge of an aerofoil leading to the development of a Fibre Optic Direct Ice Detector sensor (DID) with emphasis. The result of this studies have shown that with suitable processing it is possible to use fibre optic sensors to determine the thickness of ice and texture of the ice accreted in the vicinity of the sensor. In the latter part of this paper basic fibre optic architecture is discussed and together with some preliminary results for representative icing runs.

Paper Details

Date Published: 8 March 2004
PDF: 12 pages
Proc. SPIE 5272, Industrial and Highway Sensors Technology, (8 March 2004); doi: 10.1117/12.516910
Show Author Affiliations
Aris A. Ikiades, FORTH (Greece)
David J. Armstrong, Aerospace Composite Technologies (United Kingdom)
George G. Hare, Aerospace Composite Technologies (United Kingdom)
Mary Konstantaki, FORTH (Greece)
Samuel David Crossley, AOS Technology, Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 5272:
Industrial and Highway Sensors Technology
Brian Culshaw; Samuel David Crossley; Helmut E. Knee; Michael A. Marcus; John P. Dakin, Editor(s)

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