Under conditions of monochromatic light and a small object, the spherical aberration was the main factor which led to measuring error of focus of thin convex lens.
在单色光、小物条件下，球差是引起薄凸透镜焦距的测量误差的主要因素。
Using the data obtained during this period, the problems of determining the systematic error of FK_4 catalog and improving the constant of aberration are investigated.
利用这个期间的资料，初步研究了FK_4星表的系统误差和改进光行差常数等问题。
The sensor can do comparatively precise measurement on the aberration of defocus, astigmatism and so on, with error rates less than 1.
传感器对于离焦，像散等像差模式都可以进行较为准确的测量，误差率都小于1。
Estimate the wavefront error of the whole optical system, and select a proper defocus length to improve the wavefront error, and then check the system's aberration after defocus.
对测试仪的光学系统的波像差进行了估算，选择了合适的离焦量来补偿波像差，并对系统离焦后的像差进行了验算。
Consider the match of the aberration and the detector's area as well as the wavefront error.
分析了系统的几何像差与探测器接收面积的匹配，也考虑了光学系统波像差的作用。
So, the traditional computation theory of main cable design and the actual stress of main cable are much different, especially aberration bridge. It is apt to cause greater error.
因此，传统的主索设计计算理论与主索实际受力出入较大，特别是在变型桥设计计算上，容易造成较大的误差。
So, the traditional computation theory of main cable design and the actual stress of main cable are much different, especially aberration bridge. It is apt to cause greater error.
因此，传统的主索设计计算理论与主索实际受力出入较大，特别是在变型桥设计计算上，容易造成较大的误差。
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