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本文从几何光学的折射定律出发,采用小角度近似,推导出了V棱镜有几何形状误差和入射角误差时折射率的计算公式,讨论了它们对测量结果的影响,并指出为了提高测量的准确度而应采取的技术措施。
Based on the refraction law of geometrical optics and using the small-angle approximation, the formulas for calculating the refractive index of the V-prism with geometric shape error and incident angle error are deduced. The influence of the refractive index on the measurement results is discussed. In order to improve the measurement accuracy Degree should take technical measures.