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介绍了基于光散射原理的光纤式表面粗糙度测量仪的原理和结构．研制了一种新型测量仪，其测量范围和测量精度都有很大的提高，并应用于在位钢轧辊的表面粗糙度检测
The principle and structure of optical fiber surface roughness measuring instrument based on light scattering principle are introduced. Developed a new type of measuring instrument, the measurement range and measurement accuracy have greatly improved, and applied to the steel roll surface roughness detection