Magnets and Electromagnets (Exptal Set-Up)

[Michael Lin]

Hi all,
I need to create a very large magnetic field say 1Tesla (10000 Gauss). But I can not afford to build large electromagnets like the MRI machine. However, I have two permanent magnets that will create a static field of 5000 Gauss. My question is: can I superimpose magnetic fields created by the electromagnets onto the fields created by the permanent magnets? If so, how? There are obvious reasons why I need a changing magnetic field to maintain levitation of a smaller magnet.

Thanks for your help,
Michael

 

[berkeman]

You should be able to superimpose the DC and AC magnetic fields pretty well. I think the only liability is that the AC magnetic field will tend to demagnetize the adjacent permanent magnet a bit over time.