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首页> 外文期刊>Precision Engineering >Uncertainty analysis of a laser calibration system for evaluating the positioning accuracy of a numerically controlled axis of coordinate measuring machines and machine tools
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Uncertainty analysis of a laser calibration system for evaluating the positioning accuracy of a numerically controlled axis of coordinate measuring machines and machine tools

机译：用于评估坐标测量机和机床的数控轴定位精度的激光校准系统的不确定度分析

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摘要

This paper presents an uncertainty analysis of a Positional Error Calibrator based on a laser interferometer system. This laser calibration system is capable of evaluating the positioning accuracy of a numerically controlled axis of machine tools and coordinate measuring machines (CMM) under dynamic conditions. In order to assess the measurement uncertainty of this calibrator, an analysis of the uncertainty components that make up the uncertainty budget of this calibrator has been carried out. These uncertainty components can be classified into three categories as follows: (1) uncertainties intrinsic to the laser system; (2) uncertainties due to environmental effects; (3) measuring uncertainties due to the installation. The procedure for evaluating the uncertainty of this calibrator follows GUM ("Guide to the Expression of Uncertainty in Measurement"). This uncertainty analysis was carried out when this calibrator was used to assess the positional errors of the "X" axis of a moving bridge type CMM.
机译：本文介绍了基于激光干涉仪系统的位置误差校准器的不确定度分析。该激光校准系统能够在动态条件下评估机床和坐标测量机（CMM）的数控轴的定位精度。为了评估该校准器的测量不确定度，已经对构成该校准器不确定性预算的不确定性成分进行了分析。这些不确定性成分可分为三类：（1）激光系统固有的不确定性; （2）由于环境影响而产生的不确定性; （3）测量由于安装引起的不确定性。评估校准器不确定度的程序遵循GUM（“测量不确定度表示指南”）。当使用此校准器评估活动桥式CMM的“ X”轴的位置误差时，进行了不确定性分析。

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