| 实现物体多种状态同时判别的新方法 |
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| 引用本文： | 陈颜.实现物体多种状态同时判别的新方法[J].中国激光,1988,15(10):634-636. |
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| 作者姓名： | 陈颜 |
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| 作者单位： | 北京工业大学应用物理系 |
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| 摘 要： | 1.在普通双曝光全息干涉计量中,两次曝光之间使物体产生离面倾斜.便可实现波前纵向剪切.全息再现时,两束物光波产生的干涉场强度分布为:I(x,y)=A1+cos((4π/λ)α(x~2+y~2)~(1/2)sinθ)](1)式中A为常数,λ为再现光波长,θ为物光波的入射角,α为物面倾斜角.物面倾斜可用一个矢量α来表示,它的大小为物面倾斜角α的大小,方向垂直物面倾斜的转轴,指向光路差增加的一边,如图1.图1中O为倾斜前的物体表面,O＇为倾斜后的物体表面,(?)为物体倾斜
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| 收稿时间： | 1987/6/16 |
A new method for judging a multistate object simultaneously |
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| Abstract: | Direction of off-plane displacement resulted from any complicated deformation can be judged by introducing additional off-plane and vector analysis into holographic interfero-metry; The value and direction of the relative off-plane displacement between any two changes of various states of a sequentially deformed object in different intervals can be observed simultaneously on a single holographic plate by combining this method with multiplexing holography. |
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