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Magnet shielding and angles

Started by Rapadura, February 21, 2010, 09:10:41 AM

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Rapadura

February 21, 2010, 09:10:41 AM
Hello people,

I don't have neodymium magnets by now, I'm thinking of buying some when I get some money.

But, before I buy it, I would like to ask if any of you already have some experience with magnetic shielding and angles.

See the Paint drawn below:

Rapadura

#1
February 21, 2010, 09:14:52 AM
I am almost sure that  ball number 1 is attracted by the magnet, and ball number 2 will not be attracted. Am I right? Or ball number 2 will be attracted?

My greater doubt is on ball number 3. At that angle, magnetic shielding should work? Either the ball will be attracted?

onthecuttingedge2005

#2
February 21, 2010, 11:34:55 AM
what you need is a good software that would show you the magnetic flux between magnetic and ferromagnetic materials. using the Halbach array with shielding would be better.

AB Hammer

#3
February 21, 2010, 05:39:52 PM
Rapadura

It takes 2 layers of low carbon steel to shield properly.

http://www.overunity.com/index.php?topic=8803.msg229450#new

Alan
With out a dream, there can be no vision.

Alan

Rapadura

#4
February 21, 2010, 10:08:54 PM
Quote from: onthecuttingedge2005 on February 21, 2010, 11:34:55 AM
what you need is a good software that would show you the magnetic flux between magnetic and ferromagnetic materials. using the Halbach array with shielding would be better.

Do you know any freeware software for that?

Well, I don't know if ball #2 and ball #3 in my scheme won't be attracted by the magnet, while ball 1 will be attracted, but IF YES, it could be very interesting... Imagine a steel ball attached to a plastic wheel, approaching that magnet from the left...
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