大学物理实验中测量结果及不确定度的有效位数

张颖
长春大学理学院,吉林长春130022
摘　要:介绍了物理实验中测量结果及其不确定度的有效位数,通过举例,对不同情况下与此相关的问题进行讨论,从而明确测量结果及不确定度的有效数字的取舍。[著者文摘]

Significant figure of measurement result and its uncertainty in physics experimentZHANG Ying Applied Science Institute, Changchun University, Changchun 130022, ChinaAbstract:This paper devotes to the significant figures in the result of a measurement and its uncertainty. Through examples, the paper discusses various problems relevant to the significant figures under different conditions so as to determine the significant figures in the result of a measurement and its uncertainty in physics experiment.[著者文摘]

Key words:measurement ; uncertainty ; significant digit ; round off