| 相因子叠加法测量三维位移矢量 |
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| 引用本文： | 陈明仪,华建文. 相因子叠加法测量三维位移矢量[J]. 中国激光, 1987, 14(9): 540-543 |
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| 作者姓名： | 陈明仪 华建文 |
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| 作者单位： | 上海科技大学精密机械工程系(陈明仪)，上海科技大学精密机械工程系(华建文) |
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| 摘 要： | 研究了物体的三维位移在傅里叶频谱面上引起的位相因子的变化。用全息二次曝光法记录此变化。提出一种测量漫射物体的三维位移矢量的新方法,避免了用传统的、二次曝光全息法测量三维位移矢量中遇到的许多困难。实验结果与理论分析得到很好的吻合。
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| 收稿时间： | 1986-08-04 |
Measurement of 3-D displacement vector using phase-comparison on Fourier transform plane |
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| Abstract: | Investigation of the phase change on Fourier transform plane caused by a moving object shows that it is possible to measure a 3-D displacement vector using comparison of the phase-change recorded on a double exposure hologram. Based on it, a novel approach for measuring a 3-D displacement vector is described here. Theoretical analysis shows that the problems usually appeare during interpreting the interferograms of a conventional double exposure hologram for 3-D, displacement measurement have been effectively avoided. Experimental results are well coincident with theoretical analysis. Quantitative calculation method ia also presented. |
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