當感測系統應用於外在環境時，會因季節或氣候的更替，而產生不同的溫度變動，且由於布拉格光纖光柵具有在不同環境溫度下，反射的布拉格波長會隨之改變的特性，故當我們想利用布拉格光纖光柵作為感測器，檢測環境中某物理量時，分開溫度及溫度之外的待測物理量對布拉格光纖光柵的影響是必要的。因此，溫度無感的特性已成為未來發展類似系統的重要課題之一。
　　在本篇論文中，我們利用複合材料的熱膨脹特性，及單一根布拉格光纖光柵，來實現溫度補償的構想。在理想狀況而言，我們希望布拉格光纖光柵之反射波長因溫度上升而飄移的量，恰好等於材料因溫度上升產生的形變，造成光纖兩端點距離縮短的效應。換句話說，複合材料的熱膨脹效應，使得原本因溫度上升而被拉緊的光纖光柵，會被稍稍的放鬆，導致其反射波長頻譜會朝短波長方向移動，抵消掉光纖的溫度效應，達成溫度無感的目標。
　　在相關文獻中曾經提到過，施加於感測系統上的壓力，與布拉格光纖光柵的反射波長飄移量，有著不錯的線性關係，而壓力為單位面積的受力，我們欲了解感測系統在不同負載施加之受力，是否也與布拉格光纖光柵的反射波長飄移量成線性關係，因此在系統加載實驗部分，我們將光纖感測器固定在鋼條桿件的下方，然後在同一點處的上方，加掛不同重量的負載，執行逐步加載、卸載、再加載的實驗程序，實驗結果顯示與先前的期待是相符合的。若將此架構作更進一步的改良，對於實際應用在偵測結構體荷重情形（如土石流監測），是具有一定潛力的。

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