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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/35524

    Title: 飛行器三軸電子失事感測器之設計與實現
    Other Titles: Design and implementation of three-axis electronic crash sensor for airborne application.
    Authors: 羅偉彥;Luo, Wei-yan
    Contributors: 淡江大學航空太空工程學系碩士班
    蕭照焜;Shiau, Jaw-kuen
    Keywords: 加速儀;失事感測器;微控制器;落地試驗;Accelerometer;Crash sensor;Microcontroller;Drop test
    Date: 2005
    Issue Date: 2010-01-11 06:44:17 (UTC+8)
    Abstract: 本論文研究並設計ㄧ個三軸之低成本的電子式飛機失事感測器。此失事感測器的主要功能為持續地監視飛機飛行狀態,並在飛機失事之瞬間,自動送出警示信號給緊急定位信號發射器,發送飛機位置訊號,以縮短搜索失事殘骸的時間。本失事感測器之核心為微機電加速儀,利用PIC單晶片微控制器負責執行加速度信號擷取、分析及啟動警示命令等動作。
    This research develops a low cost three-axis electronic crash sensor for airborne application. The key elements of the crash sensor are two dual-axis MEMS technology based micro accelerometers. The crash sensor continuously monitors the acceleration of the air vehicle. An emergency activation signal will be engaged to activate the Emergency Locator Transmitter once a real crash is assured. In the design, the crash accident is assured if the acceleration exceeds 2.3 G and the velocity variation exceeds 1.4 m/sec. The data acquisition, reduction, crash condition determination, and beacon order activation are accomplished through a low cost microcontroller. A rechargeable Li-ion battery is incorporated as a backup power source. In order to gain more understanding of the crash signal characteristics, a drop test is developed and successfully conducted in the lab.
    Appears in Collections:[Graduate Institute & Department of Aerospace Engineering] Thesis

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