电磁演示实验中磁悬浮、电磁驱动、磁阻尼三个实验原理相近,将其进行组合,组装了电磁组合演示实验仪,并利用组装后的仪器做了相应的实验。其结果使实验成本降低,也使实验的趣味性增强,更能引起学生对实验的兴趣。 Electromagnetic demonstration experiment magnetic levitation, electromagnetic drive, magnetic damping three experimental principle is similar to the combination of electromagnetic assembly demonstration demonstration instrument, and the use of the instrument after the assembly made the corresponding experiment. As a result, the experimental cost is reduced, the fun of the experiment is enhanced, and the students are more interested in the experiment.