研究生: |
施仲璘 Shih, Chung-Lin |
---|---|
論文名稱: |
蝕刻之光纖光柵應用於應力和溫度的辨別 Discriminated measures of strain and temperature base on etched Fiber Bragg Grating |
指導教授: |
馮開明
Feng, Kai-Ming |
口試委員: |
劉文豐
彭朋群 馮開明 |
學位類別: |
碩士 Master |
系所名稱: |
電機資訊學院 - 光電工程研究所 Institute of Photonics Technologies |
論文出版年: | 2011 |
畢業學年度: | 99 |
語文別: | 中文 |
論文頁數: | 57 |
中文關鍵詞: | 布拉格光纖光柵 、感測器 、錐形蝕刻 |
相關次數: | 點閱:4 下載:0 |
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由於光纖相對傳統電子機械式的感測系統有非常多的優勢,像是一些具有危險的場所,一般電子機械式的感測器都是無法架設的,而在這些場所,如果我們的光纖感測器具有溫度和應力區分的感測能力,提早發現當下環境所造成異常的原因,那麼就更能夠減少發生災害的可能,因此具有溫度和應力辨別的感測器對於一些感測環境是必要的。
在本篇論文中,將布拉格光纖光柵蝕刻為單錐型和雙錐形的結構,由於經過蝕刻後的布拉格光纖光柵其截面積會有所改變,因此對於應力的敏感度會有所不同,在實驗中,利用不同蝕刻的樣本,量測其應力和溫度的係數,並且探討量測結果以及誤差來源。由於經過蝕刻後的布拉格光纖光柵其應力和溫度係數會有所不同,因此我們將兩個經過不同蝕刻條件的布拉格光纖光柵組合,可以達到辨別應力和溫度的功能,再將不同布拉格光纖光柵的樣本,以數學方式進行最佳化的分析,達到最佳化的組合,因此這樣的感測系統有較小的誤差值,能夠真實的反應出環境所受到應力以及溫度的狀況,有效作為環境的監控,最後再將最佳化的組合應用於一個具有自我治癒功能的感測網路,因此感測網路除了斷點的分析,更增加了環境監控的功能,使得感測網路更加的可靠,期許研究的成果將有助於光纖感測的發展。
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