【摘要】 钢筋抗拉强度的不确定度包括:钢筋直径的不确定度分量,拉力的不确定度分量,检测结果重复性引入的不确定度分量,数据修约的不确定度分量等等,因此,测量不确定度是与测量数据相联系的,联系数是处理不确定性问题的一种系统数学理论,可以用联系数来表示测量不确定度,为此,提出一种基于联系数的钢筋抗拉强度测量不确定度评定的新方法.更多还原

【Abstract】 Uncertainty of tensile strength of steel bar includes:uncertainty component of diamond of steel bar.Uncertainty component of tensile force.uncertainty component of repeatability of results of measurements.Data recondition and so on.Therefore,Measurement uncertainty is connected with measuring data.Connection number is a systematic theory to deal with the problem of uncertainty.Measurement uncertainty can be expressed by connection number.The paper presents a new method of evaluation of measurement uncertainty for steel bar tensile strength based on connection number.更多还原