Confirming the Delayed Lenz Effect

[conradelektro]

An easy way to see AUL is to get a diametric magnet and spin it with one of your drive coils, mine gets up to 40,000 RPM so is really good for seeing the effect in a single coil, i stuck mine on a carbon rod axle and used miniature flanged bearings sunk into holes in the perspex supports :

http://www.mediafire.com/view/?ix12bdfu0ypv1e2

I'm working on a coil that makes the rotor go faster than when there is no coil/core assembly present.

atb,

DC.

I saw your videos. Great idea. I will order some diametric ring magnets and diametric cylinder magnets. I got some small bearings but I had some success with "needle bearings" (the axle is sharpened like a pencil at both ends and the tip rests in a little crater, best in a hard material like glass).

Magnetic bearings (like skycollection does it) are also very good. Somewhere on YouTube I saw a motor like yours (diametric ring magnet on an axle) with a simple magnet bearing arrangement.

Did you drill a hole for the carbon axle or was it a ring type magnet?

Greetings, Conrad

[DeepCut]

It's a cylinder magnet, i got the plastic laser cut, there is a local company who are cheap and don't mind my small orders.

I bought the carbon rod online, it is good but after a while it wears down and the magnet slips if you don't superglue it.

Some pics of the diametric setup :

http://www.mediafire.com/view/?a9a5708ii8c13rf

http://www.mediafire.com/view/?f7jyrx8n8odnpqb

Some pics of a small multi-magnet rotor using threaded brass rod for axle and nuts and washers to secure bearings and rotor :

http://www.mediafire.com/view/?16o9q3z1zwi0433

http://www.mediafire.com/view/?aj22y7vrbxnkvlr


atb,

DC.

[conradelektro]

@synchro1 and DeepCut:

I am really amazed by the pole independence of a bifilar Tesla coil and I will try that with my "pulse motor drive circuit".

I also like DeepCut's setup ( http://www.mediafire.com/view/?ix12bdfu0ypv1e2# ) and I will build that too, just because it is so nice.

I am always reluctant drilling a hole into a magnet? But it seems to be possible without a negative effect?

I am away till after Easter, so it will be some time.

Greetings, Conrad

[DeepCut]

Yes that's a great fact from synchro, i will make a small bifilar drive coil and test it.

Right now i am testing the difference between a single bifilar coil as output, and the same coil rewound as quadfilar with the two sections connected in parallel, as suggested by gotoluc.

I've done the first test and am now rewinding the coil for the second, with my amazingly high-tech winding machine :

[URL=http://s1274.photobucket.com/user/deepcut71/media/DSC02942_zps1f5160e7.jpg.html][/url]

Well it was a good discussion, i look forward to your build


atb,

DC.

[DeepCut]

Sorry, i forgot to say the magnet already had the hole.

I will be winding coils for a bit but i have the PC on if you have more questions.

I have asked millions of questions over the past few years so it feels good to be answering some


atb,

DC.