Based on a detailed analysis of error source, some measures for increase of observation accuracy have been suggested.
并较详细地分析了误差来源，提出一些提高观测精度的措施。
This paper gives the research and the analysis about the error source and the erasing method of error on the grating angle sensor.
就光栅角度传感器的误差来源以及消除误差的措施进行分析和研究。
The paper studies the measurement system and uncertainty. Based on the analysis of system and the source of error, the paper does the uncertainty evaluation and accuracy undertaking.
文章通过对测量系统及其不确定度的研究，分别基于测量系统分析和误差溯源对测量系统进行了不确定度评定和精度保证。
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