并分析了激光矢量法的辨识精度，提出了一种补充方案，该方案能在安装误差存在的情况下准确快速地辨识出体积误差，通过实验验证了该方案的可靠性和有效性。
In this paper, the accuracy of measurement is analyzed and a new sapplementary scheme is proposed to accurately identify volumetric errors even under the existence of setup errors.
本文用数论方法推导出一个计算旋转体体积的近似公式，并给出该近似公式的误差估计。
An approximate expression of the volume of body of rotation together with its error estimation is derived on the basis of theory of numbers.
同时，本文还计算出了这几种参数的误差容限，这对体积相位全息光栅的实际制作具有指导作用。
Furthermore, the paper offers the error limited of these parameters and they are good to guide practical fabrication of the volume phase holographic grating.
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