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백태현(Tae Hyun Baek),김명수(Myung Soo Kim),이춘태(Choon Tae Lee),김환(Whan Kim),박태근(Tae Guen Park) Korean Society for Precision Engineering 2005 한국정밀공학회지 Vol.22 No.1
A multi-purpose polariscope is developed by applying an electro-mechanical control system to a diffused transmission-type circular polariscope. A conventional polariscope is only good for manual control of optical elements. The new polariscope system is devised to be controlled through two stepping motors and two magnetic clutches. The developed system has both functions of a conventional linear-and circular-polariscope. The new polariscope can be used not only for the point-wise measurement using Tardy compensation technique but also for the full-field fringe analysis using conventional and/or phase measuring techniques, if applicable.
이춘태(Choon Tae Lee),박태근(Tae Guen Park),정걸(Girl Jung),백태현(Tae Hyun Baek) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.3
In this paper, 8-step photoelastic phase shifting method was performed by using a multi-purpose polariscope to measure the fringe orders from the specimen made of Polycarbonate. The measurement results were compared with the results calculated by ABAQUS. Photoelastic measurements and FEM results are close comparable. The hybrid method that couples photoelastic data inputs and complex variable formulations involving conformal mapping analytical continuity is used to conduct the theoretic isochromatic fringe patter which were compared to the actual one.