Magnet force shield

[Low-Q]

I've used FEMM alot myself. Also done practical experiments that confirms simulations in FEMM. There is only one thing I miss about FEMM and that is the 3.rd dimension. Take a ring-magnet that is polarized radially. If you make such a magnet in FEMM, using for example 36 magnets, one for each 10 degree, in a ring, and polarize everyone pointing north towards the center, FEMM does not show any useful flux-lines, and does simulate that there is next to no attraction to a magnetic material such as an iron rod, but a practical experiment does for sure influence any magnetic material.


Speaking of shields: A shield will steal that gain you want. It doesn't matter if the shield is iron or another magnet. It shields or guides the magnetism for a reason. If one could make a magnetic shield that isn't magnetic, it would work, but that kind of material is hard to find. I don't know of any matarial with those properties.


Vidar

[Floor]

Thanks

Im looking forward to exploreing femm.
        floor

[Floor]

@ All readers

I threw up..... a new video.
It shows an effective magnet shield in action.

http://www.dailymotion.com/video/x5eg7kk_magnetshield-1_tech

As far as I'm concerned, this is all open source and public domain.
All in common...that's the only real over unity there is. 
              Thanks for every thing Luc.
                 Peace... Out
                     floor

[Floor]

@ All readers

note.. the two magnets that are glued together to make up a single larger shielding magnet,
are like poles on the same broad face as one another.  The are in mutual repusions at their edges.

Notice that in this last video, the shielding magnet sticks out
above the two stacks of magnets.

Magnet attractions and repulsion are not in all respects / situations equal in force.

When I flipped the shielding magnet over, reversed poles on ,  the device did not function as well.

That little bit of "stick out" by the shielding magnet, helps to balance the
attracting and repelling forces, I think.

                    floor

[LibreEnergia]

There is no such thing as a magnetic shield. If there was it would imply that a magnetic monopole exists and despite the best efforts, no such thing has ever been discovered.

Quite frankly you are wasting your time trying to arrange ANY combination of existing permanent or electro magnets and expecting to create magnetic shielding. You can determine the truth of this by using Noether's theorem. "For every differentiable symmetry of the action of a physical system has a corresponding conservation law".

Magnetism IS described by a 'differential symmetry'.  'Differentiable' implies that lines of magnetic potential have no inflection points. I.e. no matter how sharply the lines of magnetic force change direction it NEVER becomes a single sharp point.(as such a point would imply a monopole, which does not exist).

If you want to create OU using magnets, you'll have to devise a way to 'pipe the magnetic field into another non-physical dimension.. good luck with that. If could do that an OU motor would just be the start of some rather interesting (and dangerous) effects...