本論文開發一套遠端光纖監測系統，包含了一台光纖光柵讀取機搭配遠端監測軟體，用以代替的現有的高成本光學量測儀器，以保障民生安全為目的，能夠針對大尺度或多座高架橋梁進行同步安全即時監測。
光纖光柵讀取機系統部分，本論文改良第一代光纖光柵讀取機中探測光源所搭載的可調式光學濾波器，其調變速度可達到毫秒等級，更能符合橋梁監測當中相當重要的即時監測特性。除此之外，本論文也同步縮小光纖光柵讀取機的體積，使其能夠更方便攜帶至現場進行量測，第二代的光纖光柵讀取機可掃描監測的波長範圍為1527 nm至1567 nm，包含整個C-band波段，掃描速度則提升至20 ms/點。
遠端監測軟體部分，其讀取機初始值設定功能、單根光纖光柵掃描功能、全橋梁自動監測功能及自動存取每筆監測資料功能在針對各項功能進行軟硬體整合測試後皆能夠確實動作，使用者能在遠端藉由遠端監測軟體，對光纖光柵讀取機進行控制並讀取監測結果數據加以分析。
本文最後使用遠端光纖監測系統針對實際應用於橋梁感測上的光纖光柵沉陷計進行量測，實際模擬即時監測的功能。我們以架設於不同距離處的三座光纖光柵沉陷計分別進行實驗，結果顯示沉陷計1、沉陷計2與沉陷計3對於水位變化的靈敏度分別為0.1543 nm/cm、0.1536 nm/cm與0.155 nm/cm，線性度R2分別為分別為0.9968、0.9995與0.9988；此外我們也利用手動改變高程的方式實際模擬單點以及多點發生高程變化時的情形，此套系統也能夠確實量測到高程發生變化的位置與數值。最後測試此監測系統對各沉陷計的反射波長及峰值功率的穩定度，結果顯示反射波長非常穩定無飄動現象，峰值功率僅有少筆數據顯示±0.1 dB跳動，此監測系統在三座不同距離的沉陷計所監測到訊號呈現一相當穩定的狀態。

This thesis presents a remote fiber monitoring system. A fiber Bragg grating (FBG) interrogation system with remote monitoring software is developed to replace the high-cost optical measuring instruments to ensure livelihood security and immediately monitor several bridges in large scale.
Based on the first generation of the FBG interrogation system proposed by our laboratory, we present herein the second generation interrogation system to replace the optical tunable filter. With a mini-second tuning speed, the real-time monitoring, which is the most important characteristics, is more suitable in bridge monitoring system. Moreover, we downsize the FBG interrogation to make our system portable. Regarding the second generation FBG interrogation system, the wavelength measurement can range from 1527 nm to 1567 nm (include the entire C band) and the speed of scanning reaches 20 mini-second/point.
While testing the remote monitoring software, including setting initial values, scanning single FBG, automatically monitoring bridges and data automatically saved, all the functions work perfectly. Thus, users can control and analyze the data by using the monitoring software.
Finally, we use the remote fiber monitoring system to measure the FBG settlement sensor that is applied to the bridge sensing to simulate the function of real-time monitoring. The experiment is set up at different distances with three settlement sensors. The results show that the sensitivity of the changing in water level of the settlement sensor 1, 2 and 3 are 0.1543 nm/cm, 0.1536 nm/cm and 0.155 nm/cm, respectively, with the linearity R2 is 0.9968, 0.9995 and 0.9988. In addition, the height we manually changed is used to simulate how the height changes on one single point or multi-points. Further, the stability of the reflected wavelength and the peak power of each settlement sensors are tested in this thesis. It is shown that the reflected wavelength is stable with slightly fluctuation caused by thermal drift. Here, we have reached a peak power of less than ±0.1 dB jitter. To sum up, the system receives a stable signal when monitoring the three settlement sensors with three different distances.

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