摘要
推导了由运动的散射体产生的动态散斑的强度起伏的互相关函数，提出照明光源的曲率中心经光学系统的成像面即为动态散斑的纯沸腾面，由此给出了透镜的焦距、照明光的曲率中心、散射体的运动速度等的测量方法。
The cross-correlation function of the intensity fluctuations of dynamic speckles produced by a moving diffuser are deduced. It is proposed that in the optical system the pure boiling motion occurs at the imaging plane of the curvature center. According this, a method is given to measure the focal-position of lens, the curvature center and the velocity of diffuser, etc.
出处
《应用激光》
CSCD
北大核心
1994年第4期167-170,152,共5页
Applied Laser
关键词
动态散斑
互相关函数
纯沸腾
散射
dynamic speckles,cross-correlation function, pure boiling
