钢丝抗拉强度R_m的测量不确定度评定

Uncertainty evaluation on Measurement Result of Steel Tensile Strength R_m

根据JJF1059-1999《测量不确定度评定与表示》的要求,采用ML30CrMnSiA钢丝系统地对抗拉强度Rm的测量不确定度进行了评定。结果表明,本试验条件下的抗拉强度Rm测量结果的相对不确定度为1.34%。

According to the requirements of standard JJF1059 -1999, steel ML30CrMnSiA was adopted to evaluate systematically the uncertainty of measurement resuh of steel tensile strength Rm. The result shows that the uncertainty of tensile strength is 1.34% on this test condition