| 记录激光散斑照相的三环孔径法 |
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| 摘 要： | 提出用三环孔径记录激光散斑照相．结果表明．此种方法与环形孔径及双环孔径法相比较．进一步提高了散斑图衍射晕边缘的光强．且腰部暗区消失，提高了测量的准确性．
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| 关 键 词： | 激光干涉测量法，散斑法 |
The Way of The Use of Three Ring Apertures for The Record of The Laser Speckle Photography |
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| Authors: | Zhang Shuli |
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| Institution: | Dept.of Basic Bic. |
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| Abstract: | he theory of photographing with the method of three rings apertures torecord the laser speckle photography is raised in the paper.The result shows.tocopare with the method of a ring aperture and double ring aperture,that themethod increase the light intensity of the edge of the speckle pattern diffractionhaloes and the dark area of waist disaPPear.The method improve themeasurement accuracy. |
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| Keywords: | laser interferometry speckle method |
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