2004-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/697028摘要：光纖光柵所製成的感測器有不受電磁干擾，高靈敏度以及多樣性的量測能力等各項優點，其在靜態以及低頻的量測能力已受到肯定，且已大量在各方面獲得實質的應用成果。而光纖光柵在量測動態反應的能力上仍須有進一步的研究成果才能作實際的應用。本研究計畫為兩年期計畫，旨在建立光纖光柵在靜態、穩態以及暫態的量測技術及量測能力並創建可行的動態量測系統。在本計畫中亦將使用應變規及雷射都卜勒振動儀兩種量測技術並與光纖光柵的量測結果作比較以確定研究成果的可行性與正確性。 第一年的研究計畫主要建立靜態及穩態（振動）的量測能力並涵蓋低頻（10Hz以下），中頻（數十至數百Hz）以及高頻（數千Hz）的三個不同頻段，其輸出的施力頻率將由壓電材料來控制及激發，而第二年的研究計畫則主要建立材料受動力撞擊時的暫態反應。 綜上所述，本兩年研究計畫旨在建立光纖光柵的動態量測系統並配合其他動態量測技術來探討材料穩態和暫態的特性，而這一方面的研究亦是目前國內外有關光纖光柵研究上有所不足之處，本研究計畫雖有其困難性，而主持人在材料動態特性的研究上已有相當良好的基礎，應可順利完成本研究計畫。 <br> Abstract: Grating-based fiber sensors are simple and intrinsic and have all the advantages normally attributed to fiber sensors such as electromagnetic immunity, high sensitivity and multiplexing capabilities. Various applications in sensing static and low frequency response have been widely reported. However, some limitations, particularly in the capability of the sensing dynamic responses, may be needed for further investigations. The main objective of this two years-project is to establish the experimental measuring system based on the grating-based fiber sensors to obtain the dynamic response of materials subjected to dynamic leadings. Another two measuring techniques, strain gage and laser Doppler vibrometer, are also used in this project to verify the results obtain from grating-based fiber. The project of the first year will be focused on the static and steady state (or vibration) problems. The frequencies of the applied loading are controlled by piezoelectric materials and are covered from low frequency (under 10Hz), middle frequency ( ~ Hz) and high frequency (~ Hz). The measurement of the transient response of the material subjected to dynamic impact loadings is the main topic of this project in the second year.光纖光柵感測器動態反應Grating-based fiberSensorsDynamic response