Magnetic shielding.
Magnetic shielding.
(OP)
Sorry if this seems like a complete newbie question.. I don't have much knowledge about magnets.
What I am trying to do is magneticly shield half of a magnet, so that only one side is magnetic.
Here is an illustration of what I would like to do:
http: //img.phot obucket.co m/albums/v 214/shizna nnigan/shi elding.jpg
My first question, obviously, is will it work? I know things like computer speakers are magneticly shielded, but I'm not sure exactly how, or if it would work for only one side of a magnet.
My second question is, would the strength of the magnet, or it's lifespan, be comprimised?
My third, and hopefully final, question, is what material would be ideal for shielding? I've heard brass and copper will work best, as I obviously don't want the shielding material to be magnetic.
Any help with any of these questions would be great. Thanks!
What I am trying to do is magneticly shield half of a magnet, so that only one side is magnetic.
Here is an illustration of what I would like to do:
http:
My first question, obviously, is will it work? I know things like computer speakers are magneticly shielded, but I'm not sure exactly how, or if it would work for only one side of a magnet.
My second question is, would the strength of the magnet, or it's lifespan, be comprimised?
My third, and hopefully final, question, is what material would be ideal for shielding? I've heard brass and copper will work best, as I obviously don't want the shielding material to be magnetic.
Any help with any of these questions would be great. Thanks!





RE: Magnetic shielding.
http://www.amuneal.com/pages/magshield-intro.php
TTFN
RE: Magnetic shielding.
RE: Magnetic shielding.
Also there is no such thing in nature as a monopole, a magnet with only a north (or south) pole: the magnetic field works necessarily in closed circuit and any operation with magnets assumes that a circuit is created. Or, in other words, if you kill one pole with a suitable shielding material, then in fact you short circuit your magnet, making it useless.
So you should first of all specify what you want to do with that magnet and build a working application; then you should specify what and how much you need to shield from the field.
And, confirming what sreid said, brass and copper will do just nothing to your field, only a ferromagnetic material (suitably dimensioned) will provide some shielding.
prex
http://www.xcalcs.com
Online tools for structural design
RE: Magnetic shielding.
Try www.magnetic-shield.com for materials.