| 改进的激光散斑照相法实验研究 |
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| 引用本文： | 陈会,赵志敏,王乐新. 改进的激光散斑照相法实验研究[J]. 应用激光, 2008, 28(6) |
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| 作者姓名： | 陈会 赵志敏 王乐新 |
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| 作者单位： | 南京航空航天大学理学院,江苏,南京,210016 |
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| 基金项目： | 省国际合作项目 |
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| 摘 要： | 激光散斑照相法是实验力学中应用众多的光学测量技术中的一个分支.由于激光散斑照相技术不需要参考光即可实现物体表面形变的测量,与激光全息术相比具有特别的优点,但传统的激光散斑照相法对离面位移不敏感,一般只局限于对面内位移的测量.本文着重于激光散斑技术的应用领域的拓展和激光散斑照相过程的改进,提出一种改进的激光散斑照相方法,并用于对离面位移的测量,用实验验证了所提方法的可行性,将其与传统激光散斑照相法和激光离焦散斑照相法的结果比较,实验表明这种改进在测量微小离面位移方面是有效的且具有更高的精度和可靠性.
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| 关 键 词： | 激光散斑照相 离面位移 激光离焦散斑照相 |
Experimental Investigation of Improved Speckle Photogrammetry |
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| Chen hui,Zhao Zhimin,Wang lexin. Experimental Investigation of Improved Speckle Photogrammetry[J]. Applied Laser, 2008, 28(6) |
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| Authors: | Chen hui Zhao Zhimin Wang lexin |
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| Affiliation: | Chen hui,Zhao Zhimin,Wang lexinNanjing University of Aeronautics , Astronautics,Nanjing,Jiangsu 210016,China |
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| Abstract: | Laser speckle photogrammetry technology can measure the superficial deformation without reference light,is advanced than the traditional holography,but traditional speckle metrology technology is not efficient in the measure of out-of-plane displacement,it is mostly used in the measure of in-plane displacement.This paper focused on the application expansion of speckle metrology and the advantage of speckle photography,advanced speckle photography is investigated and the out-placement of small tested object ... |
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| Keywords: | Laser speckle interferometry out-of-plane displacement defocused speckle interferometry |
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