The X-ray image principle and the mark ruler and standard sphere are introduced in this paper. The error from the mark ruler is also analyzed in the paper.
本文介绍了该系统的X射线成像原理、光路分析以及标尺和参考球的使用，并对标尺的固有误差作了分析。
The paper discusses the principle of internal sphere diameter measurement on line, composition of the measuring device and the method of the measurement error correcting.
论述了大型内球面直径在线测量的原理、测量系统的组成及误差修正方法。
The component proportion of complex halide sphere keeps stable basically with the relative error< 5%.
复合卤化物颗粒各组分比例的一致性较好，相对误差小于5% ；
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