相对不确定度在大学物理实验测量中的应用

相对不确定度是定量分析测量结果不能确定的严重程度的一个重要物理量,如何减小相对不确定度不仅与测量方法有关,而且与测量仪器也有着很大的关系。本文从几个具体的大学物理实验测量中,研究如何利用测量结果相对不确定度来选择测量样品的数量或测量仪器,从而减小测量结果的相对不确定度,以便减小测量误差,提高测量结果准确程度。

The Application of the Relative Uncertainty in the Measurement of College Physics Experiment

The relative uncertainty is an important physical quantity,quantitatively analyzed the severity of the uncertainty of the measuring results.How to reduce the relative uncertainty is not only associated with the measuring method,but also closely related with the measuring instruments.The several practical measurements of college physics experiment are taken as examples to investigate the way to choose the number of test samples or select the measuring instruments according to the relative uncertainty of the measuring results,so that the relative uncertainty as well as the error of measuring results has been reduced and the accuracy of measuring results has been improved.