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blocking magnetic fields

blocking magnetic fields  
DaveC
 Re: blocking magnetic fields  
redbelly
 Re: blocking magnetic fields  
Mark Thorson
From:DaveC
Subject:blocking magnetic fields
Date:14 Jan 2005 15:52:47 -0800
Hi Mu metal is the most common magnetic shielding material,
http://digilander.libero.it/paeng/what_mu_metal.htm.
Other techniques are field cancelling using coils to create an equal
and opposite field to a preexisting field. Harder with Ac over an
extended area as the phase has to be right
From:redbelly
Subject:Re: blocking magnetic fields
Date:15 Jan 2005 06:45:27 -0800
DaveC wrote:

> Mu metal is the most common magnetic shielding material

That's the first thing I thought of too, except the OP wrote the
material should not be attracted by magnetic fields (mu metal is
attracted to magnets), so I refrained from mentioning it. I suspect
that he/she is asking the impossible.

Mark
From:Mark Thorson
Subject:Re: blocking magnetic fields
Date:Sat, 15 Jan 2005 16:33:42 GMT
redbelly wrote:

> That's the first thing I thought of too, except the OP wrote the
> material should not be attracted by magnetic fields (mu metal is
> attracted to magnets), so I refrained from mentioning it. I suspect
> that he/she is asking the impossible.

Perhaps it could be layered with a diamagnetic material, such as
graphite or business.
   

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