Multiplexed fiber Bragg gratings for potential aerospace applications

2005 International Conference on MEMS,NANO and Smart Systems Pub Date : 2005-07-24 DOI:10.1109/ICMENS.2005.79

N. Mrad, G. Xiao

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引用次数: 19

Abstract

Fiber optic sensor technology continues to be one of the leading technologies with significant potential for integration into existing and emerging aerospace platforms and systems for advanced in-situ diagnostics, prognostics, health monitoring and management. For the past few years, this technology has witnessed significant development but continues to be limited to trial studies on legacy aircraft. To exploit the full benefits of this promising technology in developing an integrated airframe condition-based maintenance system, several challenges need to be addressed. A major one is the development of lightweight, small size, reliable, robust handheld multisensor interrogation system. This paper highlights our current fiber optic sensor capability; identifies current implementation challenges on aerospace platforms and presents a proposed state of the art alternative. This alternative uses an arrayed waveguide gratings (AWG) based demultiplexer and provides a system resolution of 0.1/spl deg/C and 1/spl mu//spl epsiv/ for temperature and strain monitoring, respectively, in addition to the added benefits of weight and size.

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用于潜在航空航天应用的多路光纤布拉格光栅

光纤传感器技术仍然是领先的技术之一，具有集成到现有和新兴航空航天平台和系统中的巨大潜力，用于先进的原位诊断、预测、健康监测和管理。在过去的几年里，这项技术已经取得了重大的发展，但仍然局限于对传统飞机的试验研究。为了充分利用这项有前途的技术在开发基于机身状态的综合维护系统方面的优势，需要解决几个挑战。其中一个主要方向是研制轻量化、小尺寸、可靠、健壮的手持式多传感器讯问系统。本文重点介绍了我国目前光纤传感器的性能;确定当前在航空航天平台上实施的挑战，并提出建议的最先进的替代方案。这种替代方案使用基于阵列波导光栅(AWG)的解复用器，除了重量和尺寸的额外优势外，还提供了0.1/spl°/C和1/spl μ //spl epsiv/的系统分辨率，分别用于温度和应变监测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2005 International Conference on MEMS,NANO and Smart Systems

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