Taking single slit as an example, the relationship between phase error and resulting accuracy is given.
以单缝衍射为例，讨论了误差相位与计算精度的联系。
According to the structure of instrument, the influence of the slit width on spectral line is discussed, the relative measurement error of instrument is also analyzed.
根据仪器结构讨论了狭缝对谱线的影响，给出了狭缝宽度和谱线宽度的对应关系，并对仪器谱面上的相对测量误差进行了分析。
Using a knife edge to measure the MTF of optical system is a basic way. The paper discusses the influence of slit edge error on MTF by building a mathematical model.
刀口法是测量光学系统的传递函数一种基本方法，通过对刀口边缘误差建立数学模型，讨论刀口误差对光学传递函数测量精度的影响。
As is shown through the calculation, the radius error can be compensated by adjustment of the detector's position or entrance slit distance.
数值计算发现通过调整像面位置或入臂长度均能够补偿曲率半径的误差。
As is shown through the calculation, the radius error can be compensated by adjustment of the detector's position or entrance slit distance.
数值计算发现通过调整像面位置或入臂长度均能够补偿曲率半径的误差。
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