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激光全息照相实验的改进方法研究
引用本文:潘云,蔡慧妍.激光全息照相实验的改进方法研究[J].价值工程,2014(29):206-208.
作者姓名:潘云  蔡慧妍
作者单位:1. 南京航空航天大学金城学院实验中心,南京,211156
2. 南京林业大学材料科学与工程学院,南京,210037
摘    要:目前大学物理实验中的激光全息照相实验还在使用全息干板来记录全息图。针对全息干板具有消耗大,曝光时间长,稳定性差,需要化学湿处理,不易保存等缺点,本文提出了采用数字全息技术来进行改进,即利用CCD来代替全息干板作为记录介质,并通过计算机存储、数字图像处理、算法再现等手段来实现被拍摄物体三维形貌的数字全息再现。实验结果表明,数字全息技术很好地改善了普通干板全息照相的不足,实验过程快捷方便,实验结果清晰生动,能够实现量化测量。

关 键 词:大学物理实验  全息照相  数字全息  干涉测量

Study on the Improvement of Holography Experiment
PAN Yun,CAI Hui-yan.Study on the Improvement of Holography Experiment[J].Value Engineering,2014(29):206-208.
Authors:PAN Yun  CAI Hui-yan
Institution:PAN Yun, CAI Hui-yan ( 1Experiment Center of Jincheng College, Nanjing University of Aeronautics and Astronautics, Nanjing 211156, China ;2College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China)
Abstract:At present, holograms are still recorded by the holographic plate in holography experiment of the college physics experiment. But the holographic plate has some disadvantages, such as costing a lot, long exposure time, poor stability, needing chemical wet processing, and not easy to save and so on. To solve these problems, the digital holography technology is proposed to improve the holography experiment. This technology is using CCD to replace the holographic plate as a recording medium, and through the computer storage, digital image processing, reconstruction algorithm and other means to achieve the digital holographic reconstruction. The results show that, the digital holography is well done, the process is fast and convenient, and the reconstruction image is clear and vivid. What's more, the quantitative measurement can be realized.
Keywords:college physics experiment  holography photo  digital holography  interferometry
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