本研究旨在開發「可攜式船用複合材料表面特徵光學量測系統」，所量測的表面特徵包含表面粗糙度，輪廓和螺紋印現象。此系統主要包含作為投射光源的微聚焦扇形雷射、聚焦透鏡、CCD攝影機、一包含成像幕的可攜式量測箱體、筆記型電腦及自行開發的影像分析軟體。本系統是利用聚焦透鏡將扇形雷射光轉為平行光後，再投射在試片上，可量測的長度為43mm。
於量測平面試片時，所使用之雷射光強度為1mW，且利用影像邊緣高低差指標及平均線寬評估試片表面的粗糙度值Rmax，其個別的平均系統誤差為34.15％ 與25.4％。
於量測局部二維平滑 曲面試片時，所使用之雷射強度為5mW，並利用曲面平均線寬指標評估粗糙度Rmax值及Ra，其系統平均誤差分別為6.25％及1.7％。
於量測局部二維輪廓平滑曲面試片時，所使用之雷射強度為5mW，將光學系統及接觸式表面輪廓儀所量測到局部二維輪廓做比對後，可得到兩者間的局部二維輪廓轉換係數56.57，將光學系統所量測的點資料乘以兩者間的轉換係數後，再與輪廓儀做比對，則可得到最大偏差量為+ 2.72μm。利用曲面影像邊緣輪廓高低差與曲面平均線寬評估局部二維輪廓平滑曲面試片之粗糙度值Rmax時，其系統誤差分別為6.25％ 和1.7％。
利用傅立葉快速轉換評估螺紋印現象時，可發現螺紋印現象越嚴重的試片，經傅立葉快速轉換分析試片所對應之影像後，所得到的波高會越大。

The objective of the study is to develop a portable optical measurement system for the surface characteristics, including the surface roughness, profile, and the print-through phenomenon (PTP), for the yacht-used fiber-reinforced plastics (FRP). The developed system mainly consists of a micro-focused fan-shaped laser as a fringe projector, a focus lens, a CCD Camera, a measurement box body with a screen for the reflected fringe, a notebook PC, and a set of developed measurement software. The measurement length of the focused parallel beam is 43 mm. Appling a 1mW laser as a fringe projector to measure the flat specimens, and use of the indexes of image profile peak-valley height and average line width to evaluate the surface roughness value (Rmax) of the test specimens, the average system deviations were 34.15％ and 25.4％, respectively. Appling a 5mW laser as a fringe projector to measure the local smoothed 2D specimens, and use of the index of curve average line width to estimate the Rmax and Ra, the average system deviation were 6.25％ and 1.7 ％, respectively. Using a 5mW laser as a fringe projector to measure the local profile of a 2D smooth specimen, compared with the contact contour profile measuring system, a transformation factor of 56.57 for profile calibration was obtained. The maximum profile deviation was about + 2.72μm based on the calibration results. Using the curve peak-valley height index and the curve average line width index to estimate the surface roughness value (Rmax) of the curved specimens, the average system deviations were 6.25％ and 1.7％, respectively. Using fast Fourier transform (FFT) method to estimate the PTP of the test specimens, the more obvious the PTP, the larger the magnitude of FFT, based on the analysis results.

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