| 一种用于动态过程测量的实时偏振相移方法 |
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| 引用本文： | 钱克矛,缪泓,伍小平.一种用于动态过程测量的实时偏振相移方法[J].光学学报,2001,21(1):4-67. |
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| 作者姓名： | 钱克矛 缪泓 伍小平 |
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| 作者单位： | 中国科学技术大学力学与机械工程系， 合肥 230027 |
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| 摘 要： | 利用一种特殊的相位龙基光栅和偏振相移技术，可同时获得四幅具有不同相移的干涉图，由此可计算出被测物体的全场相位分布，从而实现对支态过程相位的测量。将该方法应用于马赫－曾德尔干涉系统的散斑干涉系统，分别测量了液体的折射率变化和固体的离面位移，给出了实验结果。
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| 关 键 词： | 动态过程测量 偏振相移 龙基光栅 马赫－曾德尔干涉 散斑干涉 |
A Real-Time Polarization Phase Shifting Technique for Dynamic Measurement |
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| Qian Kemao,Miao Hong,Wu Xiaoping.A Real-Time Polarization Phase Shifting Technique for Dynamic Measurement[J].Acta Optica Sinica,2001,21(1):4-67. |
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| Authors: | Qian Kemao Miao Hong Wu Xiaoping |
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| Abstract: | By using a special Ronchi phase grating and polarization phase shifting method, four phase shifted patterns can be captured simultaneously, and thus the dynamic phenomena can be measured. This technique is used in a Mach Zehnder interferometer and a speckle interferometer, the refractive index changes and the off plane displacements are measured respectively, the experimental results are given. |
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| Keywords: | dynamic phenomena measurement polarization phase shifting Ronchi phase grating Mach Zehnder interferometry speckle interferometry |
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