This LEAI-20 experimental system of Zeeman effect with permanent magnet consists of a main machine unit (including Teslameter, light source power supply, etc.), a permanent magnet, a pencil Mercury lamp, focusing/imaging lenses, an interference optical filter, a F-P etalon, a polarizer, a direct reading microscope, a CCD camera (optional), a USB image acquisition box (optional), and analysis software (optional). It is an ideal experimental instrument for advanced physics laboratories.

Using this instrument, the following experiments can be conducted:

1. Observe Zeeman effect, and understand atomic magnetic moment and spatial quantization in atomic physics

2. Observe the splitting and polarization of a Mercury atomic spectral line at 546.1 nm

3. Calculate the electron charge-mass ratio based on Zeeman splitting amount

4. Learn how to adjust a Fabry-Perot etalon and apply a CCD device in spectroscopy