| 偏振旋转孔散斑照相法 |
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| 引用本文： | 顾杰,沈永昭.偏振旋转孔散斑照相法[J].实验力学,1989,4(3):243-248. |
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| 作者姓名： | 顾杰 沈永昭 |
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| 作者单位： | 苏州大学物理系，苏州大学物理系 |
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| 摘 要： | 文提出动态散斑技术中一种新的孔径:偏振旋转孔。在旋转孔径处适当布置偏振片能使衍射晕能量分布均匀,信息存储合理,散斑条纹清晰度提高。偏振转孔法能在一张散斑图上记录下全部动态过程,并连续地再现出来。本文介绍了偏振菱位孔,偏振平移孔,偏振四扇孔,论述了它们的全场分析和逐点分析功能,给出了理论分析和实验证明。
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| 关 键 词： | 散斑照相 旋转孔径 偏振菱位孔 偏振平移孔 偏振四扇孔 |
Polarized Rotating Aperture Used in Speckle Photography |
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| Gu Jie Shen Yongzhao.Polarized Rotating Aperture Used in Speckle Photography[J].Journal of Experimental Mechanics,1989,4(3):243-248. |
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| Authors: | Gu Jie Shen Yongzhao |
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| Institution: | Suzhou University |
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| Abstract: | A new type of aperture-Polarized rotating aperture-is proposed in dynamic speckle technique. By this method the intensity of diffraction halo distrbutes evenly; the information is stored rationally; and the speckle fringrs are cleater. The information of whole dynamic process can be recorded on a single specklegram and reproduced continuously by this method. Several Kinds of polarized aperture are discussed. |
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| Keywords: | speckle photography rotating aperture dynamic defromation whole field speckle fringes |
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