测量运算结果的修约

Rounding-off of the Operation Result of Measurement

通过对微小标准差的分析,阐述正确的数值运算规则、运算结果的有效数字位数,以及它们的修约规则,阐明为提供所需精度的被测量的最佳估值及其不确定度、所须保证的测量精度及数据处理方法。

This text explains the correct number operation rule,effective number's digit of the operation result and their rounding-off rule through an analysis of minimal standard deviation.It aims at offering optimum valuation and uncertainty of the necessary measurement,which guarantee the precision and data processing method.