摘要
提出利用环形孔径进行白光散斑照相，测量物体的变形和位移。该方法具有灵敏度高、灵敏度调节范围宽、全场滤波可得到物体所有方向的位移等值条纹和逐点滤波可提高衍射晕边缘的条纹对比度等特点。
The annular aperture white light speckle photography used for measuring deformation and displacement of objects is proposed for the first time. In addition to the advantages of annular aperture laser speckle photography, in particular it can be used for measurement in the field.
出处
《应用光学》
CAS
CSCD
1994年第4期54-57,共4页
Journal of Applied Optics
基金
江苏省自然科学基金
关键词
环形孔径
白光
散斑照相
变形
位移
annular aperture, white light speckle photography, deformation,displacement, OTF
