因而，这种测量方法可用于测量工件表面粗糙度参数仪器的设计。
There- fore, this measuring method may be in use for the design of the new measuring instrument which used to measure the surface roughness parameters.
它具有分辨力高、非接触、区域平均和快速测量等优点，可获得多个表面粗糙度参数。
It has many advantages such as high-resolution, non destructive property, area-averaging and rapid measurement. It can obtain several surface roughness parameters.
分析此散斑图像的二阶统计特性，导出了强度变化的相关函数和表面粗糙度参数之间的关系。
The relation between the correlation function of intensity variation and surface roughness parameter is derived through analyzing the second-order statistical properties of the speckle image.
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