Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/2147
標題: 應用負載相移法於延遲相位之量測研究
Applying load stepping technique on the measurement of phase retardation
作者: 吳秉璋
Wu, Ping-Chang
關鍵字: load stepping;負載相移法;phase unwrapping;retardation;相位展開;相對延遲量
出版社: 機械工程學系所
引用: [1]Coker, E. G. and L. N. G. Filon, “A Treatise on Photoelasticity”, Cambridge University Press, New York, (1931). [2]Frocht, M. M., “Photoelasticity. Vol. 1”, John Wiley and Sons, New York, 1941; vol. 2, (1948). [3]Flanagan, J. H., “Photoelastic Photography”, Proc. ESA, vol. XV, no. 2, pp. 1-10, (1958). [4]Umezaki E., Tamaki T. and Takahashi S., “Automatic stress analysis of photoelastic experiment by use of image processing”, Exp. Tech., December pp. 22-27 (1989). [5]Yao, J. Y., “Extracting Isoclinics Using Image-processing Techniques”, Exp. Tech., Oct. pp. 10-11(1987). [6]Mawatari, A., Takashi M. and Toyoda Y., “Whole-Area Photoelastiv Analysis by Image Processing on the Principal Stress Direction and Saparation of Isochromatics from Isoclinics”, Trans. Of JSME, Ser. A, Vol. 55, NO. 514, pp. 1423-1428(1989). [7]Wang Z.F., Patterson E.A., “Towards Full Field Automated Photoelastic Analysis of Complex Components”, Strain, Vol. 27, May, pp. 49-53(1991). [8]Wang Z.F., Patterson E.A., “Use of phase-stepping with demodulation and fuzzy sets for birefringence measurement”, Opt Lasers Eng Vol. 22 pp. 91-104(1995). [9]Sai Prasad V., Madhu K.R. and Ramesh K., “Towards effective phase unwrapping in digital photoelasticity”, Opt Lasers Eng Vol. 42 pp. 421-436(2004). [10]Ekman M.J. and Nurse. A.D., “Absolute determination of the Isochromatic Parameter by Load-stepping Photoelasticity ”, Experimental mechanics,pp.189~195(1998). [11]Ramesh* K., Tamrakar D.K. “ Improved determination of retardation in digital photoelasticity by load stepping”, Optics and Lasers in Engineering 33 (2000) 387~400. [12]James W. Dally and William F. Riley, “Experimental Stress Analysis”, McGraw-Hill International editions. pp. 425-439(1991) [13]Ramesh K. and Deshmukh S. S., “Three fringe photoelasticity: use of colour image processing hardware to automate ordering of isochromatics”, Strain, vol. 32 no. 3, pp. 79-86(1996). [14]Yao, J. Y., “Digital Image Processing and Isolinics”, Exp. Mech., vol. 30 no. 3, pp. 264-269 (1990). [15]Theocaris P. S. and Gdoutos E. E., “Matrix Theory of Photoelasticity”, Berlin and New York, Springer-Verlag (1979). [16]Brown. G. M. and Sullivan J. L., “The Computer-aided Holophotoelastic Method”, Exp. Mech., Vol 30, no.2 pp. 135-144(1990). [17]Hariharan P., Oreb B.F., and Eijux T., “Digital phase-shift interferome –try:a simple error-compensating phase calculation algorithm”, Appl. Opt. vol. 26 pp.2504(1987). [18]Ghiglia D. C., Mastin G. A. and Romero L. A., “Cellular-automata method for phase unwrapping”, J. Opt. Soc. Am. A, Vol. 4, pp.267- (1987). [19]Spik A. and Robinson D. W., “Investigation of the cellular automata method for phase unwrapping and its implementation on an array processor”, Optics and Lasers in Engineering, vol. 14, 25-37(1991). [20]Chang H. Y., Chen C. W., Lee C. K. and Hu C. P., “The tapestry cellular automata phase unwrapping algorithm for interferogram analysis”, Optics and Lasers in Engineering, vol. 30, no. 6, 487-502(1998). [21]Huang M. J. and Lai Cian-Jhih, “Phase unwrapping based on a parallel noise-immune algorithm”, Optics and Laser Technology, vol. 34, no.6, 457-464 (2002). [22]陳森案,”相位重建之影像處理技術應用於光學量測之研究” ,中興大學機械工程學研究所碩士論文,中華民國九十一年七月。 [23]周文彬, “平行性區域形相位展開技術應用於雷射光學量測之研究”,中興大學機械工程學研究所碩士論文,中華民國九十二年七月。 [24]林智文, “調控型相位展開及顯微光學量測之研究”,中興大學機械工程學研究所碩士論文,中華民國九十三年七月。
摘要: 
本論文主要的目的是利用負載相移法來求得相位圖,並且使用相位展開的技術使相位圖展開完成,得到我們所要求得的物理量-相對延遲量(主應力差)。在光彈圓偏光架設中,分別求得加入微小負載後的各別六張光強圖,之後解得其包裹相位圖,再利用相位展開技術使其能夠順利展開完成得到整場相位圖。
本文以模擬圓盤在微小負載狀態下之光彈模型,展開之後和原始模擬的資料進行比對求得其誤差量,證明這個方法的可行性與準確性,同時在最後也有應用拉力實際測試樣本試片,解得其相位圖。

The main purpose of this paper is to improvement of isochromatics wrapped phase map can make the phase to unwrap successfully and get the physical quantity we want to know. There is a peculiar problem of isochromatic interaction in Phase-shifting techniques of photoelasticity. After separately obtains the load stepping the different six luminous intensities map, to get wrapped phase map. In phase unwapping technique to enable its smoothly to unwrap completely and obtains the entire field phase map.
The computer simulation results obtained for disk-in-compression tests in load stepping presented here in comparison with theoretical solutions demonstrate that these methods are both simple to use and very accurate. Finally, we use pulling force in actual test sample to prove its phase map.
URI: http://hdl.handle.net/11455/2147
其他識別: U0005-2508200821580700
Appears in Collections:機械工程學系所

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