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Proceedings Paper

On the use of a compact optical fiber sensor system in aircraft structural health monitoring
Author(s): Nezih Mrad; Honglei Guo; Gaozhi Xiao; Bruno Rocha; Zhigang Sun
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Paper Abstract

Structural Health Monitoring (SHM) has been identified as an area of significant potential for advanced aircraft maintenance programs that ensure continued airworthiness, enhanced operational safety and reduced life cycle cost. Several sensors and sensory systems have been developed for the implementation of such health monitoring capability. Among a wide range of developed technologies, fiber optic sensor technology, in particular fiber Bragg grating based emerged as one of the most promising for aircraft structural applications. This paper is set to explore the suitability of using a new Fiber Bragg Grating sensor (FBG) system developed for operation in two modes, low and high speed sensing modes, respectively. The suitability of the system for potential use in aircraft load monitoring and damage detection applications has been demonstrated. Results from FBG sensor system were in good agreement with results from conventional resistive strain gauges, validating this capability for load monitoring. For damage detection, the FBG sensor system was able to detect acoustic waves generated 52 inches (1.32 m) away. The initial results, obtained in a full stale experimentation, demonstrate the potential of using FBG sensors for both load monitoring and damage detection in aircraft environment.

Paper Details

Date Published: 10 May 2012
PDF: 5 pages
Proc. SPIE 8368, Photonic Applications for Aerospace, Transportation, and Harsh Environment III, 836808 (10 May 2012); doi: 10.1117/12.921041
Show Author Affiliations
Nezih Mrad, Defence Research and Development Canada, Ottawa (Canada)
Honglei Guo, National Research Council Canada, Ottawa (Canada)
Gaozhi Xiao, National Research Council Canada, Ottawa (Canada)
Bruno Rocha, National Research Council Canada, Ottawa (Canada)
Zhigang Sun, National Research Council Canada, Ottawa (Canada)


Published in SPIE Proceedings Vol. 8368:
Photonic Applications for Aerospace, Transportation, and Harsh Environment III
Alex A. Kazemi; Nicolas Javahiraly; Allen S. Panahi; Simon Thibault, Editor(s)

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