Fringes after applying magnetic field 
Use software to process fringes
Before and after applying magnetic field at 436 nm
Before and after applying magnetic field at 577 nm
Features
Adjustable magnetic field intensity from electromagnet
High accuracy Teslameter included
Optional CCD and software for Windows 7/8/10, 32/64-bit computers
Introduction
This LEAI-21 experimental system of Zeeman effect with electromagnet consists of a main machine unit (including Teslameter, light source power supply, etc.), an electromagnet, a pencil Mercury lamp, focusing/imaging lenses, an interference optical filter, a F-P etalon, a polarizer, a direct reading microscope, an optional CCD camera, an optional USB image acquisition box, and analysis software (optional). In addition, the relatively wideband etalon allows the observation of Zeeman effect at other Mercury spectral lines of 577 nm and 436 nm with an optional set of filters. It is an ideal experimental instrument for advanced physics laboratories.
The instruction manual contains comprehensive materials including experimental configurations, principles and step-by-step instructions. Please click Experiment Theory and Contents to find more information about this apparatus.
Using this instrument, the following experiments can be conducted:
1. Observe Zeeman effect, and understand atomic magnetic moment and spatial quantization
2. Observe the splitting and polarization of a Mercury atomic spectral line at 546.1 nm
3. Calculate 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
Specifications
| Item | Specifications |
| Electromagnet | intensity: >1000 mT; pole spacing: 7 mm; dia 30 mm |
| Power supply of electromagnet | 5 A/30 V (max) |
| Etalon | dia: 40 mm; L (air): 2 mm; passband:>100 nm; R= 95%; flatness:< λ/30 |
| Teslameter | range: 0-1999 mT; resolution: 1 mT |
| Pencil mercury lamp | emitter diameter: 6.5 mm; power: 3 W |
| Interference optical filter | CWL: 546.1 nm; half passband: 8 nm; aperture: 19 mm |
| Direct reading microscope | magnification: 20 X; range: 8 mm; resolution: 0.01 mm |
| Lenses | collimating: dia 34 mm; imaging: dia 30 mm, f=157 mm |
Parts List
| Description | Qty |
| Main Unit | 1 |
| Pencil Mercury Lamp | 1 |
| Milli-Teslameter Probe | 1 |
| Mechanical Rail | 1 |
| Carrier Slide | 6 |
| Power Supply of Electromagnet | 1 |
| Electromagnet | 1 |
| Collimating Lens | 1 |
| Interference Filter | 1 |
| F-P Etalon | 1 |
| Polarizer | 1 |
| Imaging Lens | 1 |
| Direct Reading Microscope | 1 |
| Power Cord | 1 |
| Instruction Manual | 1 |
| CCD, USB Interface & Software | 1 set (optional) |
Fringes after applying magnetic field
Use software to process fringes
Before and after applying magnetic field at 436 nm
Before and after applying magnetic field at 577 nm
