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標題: 光彈參數互相影響問題之排除與修正
Elimination and correction of the interactions between the photoelasticity parameters
作者: 宋泊錡
Sung, Po-Chi
關鍵字: Photoelasticity;光彈;Ambiguity;Isoclinic;Region;Phase unwrapping;模糊;等傾角;區域;相位展開
出版社: 機械工程學系所
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The reason that we can conveniently obtain the full-field stress information from photoelasticity is due to it provides two parameters, isochromatic and isoclinic, by the polariscope. However, the phase-stepping method will produce the isoclinic-isochromatic interactions that is undefined region and ambiguity(ambiguous region) on the phase maps of photoelasticity. So, the paper presents a method to eliminate and correct the undefined region and ambiguity by the polariscope configuration and phase unwrapping algorithm, respectively. The former, the configuration is based on the four-step plane polariscope with white light and six-step circular polariscope with monochromatic light, and the latter, the algorithm is a phase unwrapping technique that is based on image processes involved in connecting points and region split for the isoclinic parameter. The correct experimental result and fine process time confirmed the availability and benefit of the configuration and algorithm proposed in the paper.
其他識別: U0005-1008200914423900
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