从分裂波数差谈塞曼效应实验之电子荷质比的测量

Discussion on Measurement of Electron Charge-Mass Ratio by Zeeman Effect Experiment from Splitting Wavenumber Difference

从分裂波数差概念出发,理清塞曼效应电子荷质比测量实验中关于观测的对象及其波数差的确定、错序法等容易混淆和不易理解的问题;基于标准具自由光谱范围,利用分裂谱线波数差分布图对汞546.1 nm塞曼分裂错序花样进行了推演。以增进学生对电子荷质比测量方法的理解,并为塞曼效应实验教学提供参考。

Based on the concept of splitting wavenumber difference,it clarifies some confusing and incomprehensible problems in electron charge-mass ratio measurement experiment by Zeeman effect,such as the determination of the observed object and its wavenumber difference,the spectrograde overlaping method,etc.According to free spectral range of F-P etalon and the wavenumber difference distribution map of Hg 546.1 nm Zeeman splitting spectral,the spectrograde overlapping pattern are deduced.It can improve students’understanding of measurement methods and also provide a certain reference for teaching.