Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/1681
標題: 四分之一波板誤差對不同光彈相移法之影響比較與分析
The error analysis of quarter wave plate on different polarization shifting algorithm
作者: 粱華融
Liang, Hua-Jung
關鍵字: photoelasticity;光彈;error of quarter plate;phase shift methods;波板誤差;相移法
出版社: 機械工程學系所
引用: [1] J. W. Dally, W. F. Riley, Experimental stress analysis, 3rd ed., McGraw-Hill, New York, Ch.12-13, 1991 [2] A. Ajovalasit, S. Barone, G. Petrucci, A review of automated method for the collection and analysis of photoelastic data, Journal of strain analysis, Vol.33, No.2, pp.75-91, 1998 [3]N. Plouzennec, A. Lagarde, Two-wavelength method for full-field automated photoelasticity, Exp. Mech. ,Vol.39,No.4,pp.274-277,1999 [4] E. A. Patterson, Z. F. Wang, Towards full field automated photoelastic analysis of complex components, Strain, Vol. 27, No. 2, pp. 49-56, 1991 [5] A. Ajovalasit, S. Barone, G. Petrucci, A method for reducing the influence of quarter-wave plate error in phase stepping photoelasticity, Journal of strain analysis, Vol. 33, No. 3, pp. 207-216, 1998 [6] L. Tong, C. G. Boay, A. Asundi, Novel full-field automated photoelastic analysis technique, Opt. Eng, Vol. 39, No. 10, pp. 2689-2695, 2000 [7] E. A. Patterson, Z. F. Wang, Simultaneous observation of phase-stepping images for automated photoelasticity, Journal of strain analysis, Vol. 33, No. 1, pp. 1-15, 1998 [8] S. Yoneyama, H. Kikuta, Phase-stepping photoelasticity by use of retarders with arbitrary retardation, Exp. Mech. , Vol. 46, pp.289-296, 2006 [9] S. Barone, G. Burriesci, G. Petrucci, Computer aided photoelasticity by an optimum phase stepping method, Exp. Mech. , Vol. 42, No. 2, pp. 132-139, 2002 [10] J. W. Jaronski, H. T. Kasprzak, Generalized algorithm for photoelastic measurements based on phase-stepping imaging polarimetry, Appl. Opt. , Vol.38, No.4, pp.7018-7025, 1999 [11] A.Ajovalasit, S. Barone, G. Petrucci, B. Zuccarello, The influence of the quarter wave plates in automated photoelasticity, Opt. Lasers Eng. , Vol. 38, pp.31-56, 2002 [12] D. K. Tamrakar, K. Ramesh, Simulation of errors in digital photoelasticity by Jones calculus. Strain, Vol. 37, No. 3, pp. 105-112, 2001 [13] M. Ramji, V. Y. Gadre, K. Ramesh, Comparative study of evaluation of primary isoclinic data by various spatial domain methods in digital photoelasticity. Journal of strain analysis, Vol. 41, No. 5, pp.333-348, 2006 [14] P. S. Theocaris, E. E. Gdoutos, Matrix theory of photoelasticity, New York, Springer-Verlag Berlin Heidelberg, 1979. [15]P. S. Theocaris , E. E. Gdoutos, Matrix theory of photoelasticity, Springer-Verlag Berlin Heidelberg New York, Ch.4,1979
摘要: 
四分之一波板延遲量精確性關係光彈應力參數量測結果的正確性甚巨,本文針對常見之七種偏光相移法進行系統誤差分析,充分掌握四分之一波板在不同波長條件使用下,延遲量誤差對光彈量測參數的誤差影響程度。隨著波板誤差越大,相移法對主應力角與主應力差造成之誤差也隨之越大,於Patterson的圓偏六步時,在波板誤差為10°情況下,在主應力角為0°時,隨著主應力差之不同,其主應力角之最大誤差量甚之可高達45°,誤差程度超越了100%。而在主應力差方面,當主應力差為0°或±180°時,隨者主應力角之不同,其最大誤差可高達30°左右,由此可見波板誤差對偏光相移法之影響程度。

The accuracy of parameters from photoelasticity gauging is greatly influenced by the accuracy of retardation from quarter wave plate. In this paper, we use seven different types of phase shift methods to analyze the error; we then are able to control the degree of retardation error, which causes parameter error from photoelasticity, under quarter wave plate in different wavelength. We noticed that, under implementation of phase shifting methods, with more errors we retrieve from wave plates, greater differences from the principal stress angle to principal stress difference would reveal. For example, in six-step phase shifting technology which is proposal from Patterson when the wavelength error is ten degree and the principal stress angle is zero degree, with the difference of principal stress difference, the inaccuracy of principal stress angle can reach to its highest level as forty-five degrees. In percentile, the error extend is even more than a hundred presents. On the other perspective, when the principal stress difference is 0 degree or ±180°, with the difference of principal stress angle, its error can reach to its highest level as 30 degrees. With these examples, we can know that there is important relationship between wave plate errors and polarization shifting algorithm method.
URI: http://hdl.handle.net/11455/1681
其他識別: U0005-2308201119152600
Appears in Collections:機械工程學系所

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