Based on the theory of Zeeman effect and free spectral range of Fabry-Parot etalon, asimple method for measuring wave number defference and specific charge is designed.

• 根据原子光谱线在外磁场中的分裂特点和法布里-珀罗标准具的自由光谱范围，导出了一种在塞曼效应实验中测量分裂谱线波数差和电子荷质比的简单方法，并给出了应用实例。