基于数控机床的保护联结电路连续性测量不确定度评定

Uncertainty Evaluation of Continuity of the Protective Bonding Circuit Testing for NC Machine Tools

以数控机床为测试对象,通过分析测量过程中不确定度来源和建立数学模型,详细介绍了保护联结电路连续性测量时标准不确定度、合成不确定度和扩展不确定度的评定方法。对该类测量的不确定度分析可为今后保护联结电路连续性电阻的精确测量提供理论依据。

Through analyzing the measurement uncertainty sources and build its math model based on NC machine tools, the assessment methods about the standard uncertainty, combined uncertainty and expand uncertainty of the continuity of the protective bonding circuit test were introduced detailedly. The uncertainty analysis for continuity of the protective bonding circuit provides theory basis for its accurately test.