Re: Faraday cage

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Paul Benham by way of Terry Fritz <twftesla-at-qwest-dot-net>" <paulb-at-woodanddouglas.co.uk>

Hi Terry,

If you construct it properly so all the seams are soldered and the door has
berilyum copper fingering all the way around, ie no slots, and the material
is conductuve enough, then it will attenuate the magnetic fields as well as
the electric fields, and work as a true faraday cage.  If you are only
interested in attenuating the electric fields then you do not need to be
that fussy regarding continuous conductivity all the way around with no
slots or holes.  I think that getting chicken wire or screen mesh and only
soldering the sides at the corners is not a good idea.  The size of the mesh
will determine the highest frequencies that it will attenuate.

Cheers,

Paul.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, May 10, 2002 2:21 AM
Subject: Faraday cage


> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
>
> Hi All,
>
> I was thinking of making a simple Faraday cage.  I have a lot of computer
> and other electronic stuff creeping all over the house and though it would
> be nice to have.  Maybe like a 6 foot cube.
>
> I was thinking of a simple 1x2 wood frame with aluminum screening.
Simple,
> fast, and easily handled.  Not real big and easy to take down.
>
> I had the following questions:
>
> 1.  Is there any chance of setting the aluminum (bug screen as on windows
> and doors) on fire?  I know some metals like steel wool can light up and I
> just wanted to check on aluminum screening.
>
> 2.  Arcing directly to the screen will tend to transmit RFI and magnetic
> fields go right through it, but do you think it would be worthwhile?
>
> 3.  Any construction tips?
>
> Cheers,
>
> Terry
>
>
>
>
>
>
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