电子错位散斑条纹特性的实验研究

Experimental Investigation of the Fringe Characteristics of Electronic Shearing Speckle

通过位移位相存在的真实性实验和位移梯度的解相关实验，证实电子错位散斑干涉术的条纹是由物体变形所引起的位移位相和位移导数位相及由位移和位移导数共同决定的附加位相之和的余弦条纹。这种余弦条纹的质量和对比度与位移、位移导数及滤波光孔的直径有关。

Under the circumstances of general deformation,the fringe of electronic shearing speckle is a cosine fringe of the displacement phase and the displacement gradient phase. The experimental results are presented to indicate the new theory.