“随机误差”和“系统误差”概念演变及在磨料物性检测中的应用

EVOLUTION OF THE CONCEPTIONS OF "RANDOM ERROR" AND "SYSTEMATIC ERROR" AND ITS APPLICATION IN THE DETERMINATION OF PHYSICAL PROPERTY OF ABRASTVE GRAINS

《JJF10 0 1-1998通用计量术语及定义》对“随机误差”及“系统误差”两术语作了原则性修改 ,本文通过算术平均值原理对两术语的实质进行了分析 ,本文还分析了磨料密度检测中随机误差及系统误差的产生原因 ,最后对随机误差及系统误差的性质及其区别作了进一步的说明。

Terms of “random error” and “systematic error” have been revised in 《JJF 1001-1998 General Terms in Metrology and Their Definitions》. The substance of the terms are analysed by means of the priciple of arithmetic average in the paper. This paper also explained the cause of producing random error and systematic error in the determination of density of abrasive grains. At last, the nature and differentiation of random error and systematic error are expounded further.