Magnetic waves.

[Russkie]

Sorry posting here also b/c i wanst sure which thread this belongs in...

 

Hi,

Is there any substance/material that i can place infront of an ordinary magnet that will block the magnetic waves? say i have a strong magnet next to a piece of metal, is there anything i can stick between them so the metal will not be attracted to the magnet?

thnx for any help.

[ecoli]

it's alright, but in the future, just make one post, and a mod will move it if it's not in the right place.

 

As for the question, there are lots of things that can block a magnetic field... but I suppose most things could if it's thick enough (and they lack there own magnetic field as well)

[Russkie]

Um, if its thick enough?

well clearly if the metal object is far enough awayf rom the magnetic field it wont get affected, i need a material where if the metal and magnet are very close together, the metal will not be affected (effected?)

 

thnx.

[swansont]

You can surround the magnet with a material with a reasonable magnetic permeability, so the the magnetic flux preferentially flows through the material. This will dramatically lessen the flux present, and thus the attraction, at the other piece of metal.

 

The magnetic base shown here works on that principle. When the knob in in one orientation, the magnetic field is unblocked, and the base sticks strongly to a metal table. When you turn it 90 degrees, the flux return orientation is present, and there is only a very small field that escapes, so the base can be removed. You could do this in multiple layers to decrease the flux leakage were it necessary.

 

You cannot, however, shield two magnets from each other. They would each be attracted to the shielding material.

[Russkie]

That sounds good but... I was using metal vs magent as an example but truthfully i need magnet vs magnet.

 

Let me ask you this tho, If i take a powerful magnet, and on the N side i take a very weak magnet and i force the N side of the weak magnet on to the N side of the Powerful one, what would be the result of the S side of the weak magnet, will that, in result, block the N waves of the powerful magnet? Will it make the S side of the weak magnet more powerful? And also will that mess up the magnets if they are stuck like that for a long period of time...

 

Thanks for any help.

[swansont]

Well, then, I wouldn't dream of piling any more "crap" (French or otherwise) on this thread. Best of luck with your enquiries.

[Russkie]

Mmm, ok sorry bout that.