Power from repelling magnets

[ayeaye]

http://translationportal.epo.org/emtp/translate/?ACTION=description-retrieval&COUNTRY=DE&ENGINE=google&FORMAT=docdb&KIND=A1&LOCALE=en_EP&NUMBER=3900890&OPS=ops.epo.org/3.2&SRCLANG=de&TRGLANG=en
scrolling down to :
"It is known that the force.... "

"It is known that the force exerted by two interacting magnets is much less when the magnets are displaced laterally relative to one another instead of being torn off."

It is not clear from that translation what Naudin really meant, but it looks like that the opposite is true. As there are evidently less field lines above the pole, then the forces and energy of approaching laterally should be greater than the forces and energy of approaching axially. Experiments also seem to show that.

Sorry for the late reply, but i did read again the Naudin article, and considered that to be important.

[ayeaye]

Ok, no one has nothing to say? Norman is not back either. My spring scales have not yet arrived. When they do, then i can do the experiment, and then i may create a new thread.

The experiment that i'm going to do, is basically on the figure below. I'm going to measure the forces, and the distances moved. The disk is a core of a computer fan, with an iron nut on it.

[telecom]

This is a very interesting experiment.
Just want to note that digital scales are probably more precise than the mechanical ones.

[sm0ky2]

Ayeaye,


I think you are taking this situation too logically.
Shouldn't worry so much about 'field symmetry'
The field will warp and change to your approach
You want to enter in at an angle where the
boundary condition is minimal. This is not quite max acc.


The exit is sooner than you imagine as well.
It is during the transition of the arc where the approach is closest
that the moving magnet gains its' momentum.
It is an 'acute' arc, the angle of which can only be determined once the
magnetic factors are known or through experimentation.


When both magnets are moving there are advantages

[ayeaye]

Kolbacict see, the rubber band below was 132 mm long with 200 g weight, i measured it by weighing the pate that i bought. In stores they sometimes have very precise electronic scales, and these are free to use. If only the store doesn't alter the scales to get some benefit, which is unlikely. With the package only the length was 77 mm, and the package weighed almost nothing. Just so that the two sides of the rubber band are almost parallel for the minimum length. It was so with my rubber band, not necessarily with yours. The measured length was all the length of the rubber band, from end to end. Now do some calculations, and apply the Hooke's law, the force in newtons is   (measured_length - 77) / 28.042 .