提高牛顿环测平凸透镜曲率半径精度的方法对比研究

A Contrastive Study on Research Methods on Improving Accuracy in Measuring Radius of Convex Lens by Newton Ring

以实验为基础,采用三种测量方法采集数据,运用逐差法、加权平均法处理数据.用不同数据处理方法处理同一组数据,比较精度得到最佳数据处理方法;用最佳数据处理方法处理不同测量方法得到的数据,比较精度得到最佳数据采集方法.从而得到精度最高的数据采集、处理方法.通过实验数据分析了暗环环数之差对相对不确定度的影响.综合诸因素,对干涉暗环的合适环数展开了研究.也对逐差法、加权平均法的适用性进行了讨论.

Based on expetriment,three measuring methods are used to collect data and took the method of successive difference and the weighted average method are used to process the data.Different data procersing methods are used to process the same set of data,which can get the best data processing method through the comparison of accuracy.Then,the best data processing method is used to process different measuring methods to obtain the data and the best data collection method is obtained by comparing the accuracy.Thus,we get the data acquisition and processing methods with the highest accuracy.according to experiment data analyzed the difference between the number of dark rings how to influence the relative uncertainty of the experimental results.A combination of factors,choosing a suitable number of rings for measurements and making a comparison about the applicability between the method of successive difference and the weighted average method have been discussed.