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magnetic flux / faraday disc idea .

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Salvador

Tue Oct 06 2015, 08:28AM

Registered Member #54402 Joined: Mon Feb 02 2015, 11:09PM
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Posts: 86

radiotech , i'm not sure i understand all of that wise language but in common terms , this generator would then work both magnetically and capacitively, since the current in the disc is a consequence of a magnetic field but the current path to each next disc and ultimately out of the generator would be made out of capacitance.
I suppose the problem is that the capacitance part would make the generator innefficient , since the current a decent magnetic field can generate in a spinning homopolar disc is quite large , yet the current that could go through the series capacitance would be small. and the total power that could be achieved from the system would be as always limited by the weakest point in the system in this case the capacitive coupling of the power from the generator.

If only there could be a way to bolster the voltage in the homopolar magnetic part of the generator and then feed the much higher voltage lower amperage current to a set of rotating plates with a dielectric between them.

hen918

Tue Oct 06 2015, 05:06PM

Registered Member #11591 Joined: Wed Mar 20 2013, 08:20PM
Location: UK
Posts: 556

Salvador: How are you going to get high frequency AC out of homopolar generators? You can't capacitively couple the DC output of a Faraday disk.

Salvador

Wed Oct 07 2015, 07:21AM

Registered Member #54402 Joined: Mon Feb 02 2015, 11:09PM
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Posts: 86

simple, atleast in theory. use a high frequency AC magnetic field to excite the generator and you get a directly corresponding output of AC.even with a matching waveform which is the lovely part in all of this,

Salvador

Sat Oct 10 2015, 01:15PM

Registered Member #54402 Joined: Mon Feb 02 2015, 11:09PM
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Posts: 86

guys , let me ask one thing , maybe i have asked it before but it confused me , in the DC magnetic field situation in order to get current from a homopolar disc the brushes needed to be stationary with respect to disc or moving at a different speed , but if the disc was excited with AC , does the same law holds true?

like imagine i have a small lamp across the disc with contacts at rim and center, the lamp and its wires rotate with the disc , the magnetic field is AC what happens?is there any additional current produced from the rotation or is there just as much power induced as the exciting field supplies and the rotation is ignored ?

i understand the dc situation but the ac one kinda puzzles me.

Salvador

Thu Oct 20 2016, 02:48PM

Registered Member #54402 Joined: Mon Feb 02 2015, 11:09PM
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Posts: 86

So a year has passed and I built something similar to the device in this link which we talked about here previously.

So to come as close as possible to the idea that a rotating torus has a coil on it and the magnetic field points either inwards or outwards at all places of the torus to make a multi turn homopolar generator , surely one can't make a magnetic monopole torus as the field lines would have to enter and exit at some place as we discussed in this thread so I kind of split the torus up by using pipes , of two diameters.
I used a permanent cylinder type neodymium magnet and connected it in series with a circular pipe which is then connected by a larger diameter one and then back again into the original diameter that goes back to the magnet , in these interconnections were the larger diameter pipe overlays the smaller one the field is pointing outwards from the inner pipe towards the larger one , in these places i wrapped a small coil of wire which sits inbetween the pipes.
Yet when I rotate the assembly no voltage is generated I wonder why ,

the fundamental question would be can a multiturn (more than one turn of wire ) homopolar generator work with the loop being connected as one and having the right angle magnetic field through it or does each individual turn in a homopolar machine has to be connected to the next one via a sliding contact or brush which is stationary , and only then it works ?

I have attached a paint file in which I made the approximate layout of my design , as you can see the whole circle is suspended from the iron central axis by brass connectors in order for the magnetic field to not go astray , then the magnetic field is directed around the metal loop and the loop ends inside the connecting pipe whihc is larger and between the inner diameter of the connecting pipe and the outer diameter of the metal circle there is a coil, so the magnetic field through that coil happens to go from all sides and cuts the coil at 90 degrees which theoretically should work.

Ok any ideas folks ?

1476974892 54402 FT173071 Homopolar Test

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