Self accelerating reed switch magnet spinner.

[MileHigh]

Conrad:

For the pancake coils, about 10 cm in diameter should be fine.  You can use whatever gauge of wire you want for the pancake coils.  I would recommend that you do a regular and a bifilar coil and use the same wire.  You may want to use a smaller gauge of wire within reason so that you can get more inter-coil capacitance with the bifilar version.  For me that's not really a valid issue because my assumption is that the inter-coil capacitance will be insignificant and will not show any significant effects.  The effects of the capacitance will be so small that in many cases they will not even be measurable.

There is a fair amount of magnetic field self-cancellation in a pancake coil so I would expect that the inductance measurement would be quite low.

This is a typical case were visualization in your mind can be used as a tool.  It's easy to visualize the field of the spinning rotor magnet.  It's easy to imagine how each individual loop of the pancake coil will "see" the changing magnetic flux.  Where it gets complicated in this case is what happens when current starts to flow in the pancake coil and how do you visualize that?   A loop in the middle of the pancake has a relationship with both the smaller loops and the larger loops.  In certain regions there is magnetic field cancellation and in other regions there is magnetic field addition.  The net result is that the pancake coil has a certain inductance value and a certain field pattern.  Thankfully with the scope you can just look at the resultant waveforms and put the complicated pancake coil geometry inside a "black box."

Whatever tests you do with your regular and pancake coils, it's great that you are willing to do comparative tests.  It's really important and it would be good if all experimenters took this approach.  Will you find any differences between a regular pancake coil and a bifilar true-Tesla pancake coil?  I am assuming that you will not see any differences.

MileHigh

[conradelektro]

@Conradelektro,
Here's what I want you to do: Remove the magnets from the bobbin, then wrap a layer of plastic dielectric tape around them. Then wrap one bifilar layer, connect the near and far end in series, attach the resistors, then play the coil back into the flutter zone you discovered and check the output! The thin layer will reduce the inductance input to practically zero, so anything you get should be from the oscillation alone. This should not have a slowing effect on the rotor. You didn't test that coil, you just failed to get it to work! I feel you owe me and the thread audience at least that much.

Synchro1, I will do that test, but it will take some time. I owe nobody nothing, but I hope that you and me will learn something from that "one bifilar layer synchro coil" test.

And I ask you to be more polite. You make very bold assumptions and far reaching statements and then you freak out if they can not be proven or if someone takes the time to explain well proven facts. The accusation that I sabotaged the test is a good example of your questionable way of thinking. You are the one who sabotages himself constantly without realising it.

Stay cool and be patient, I do the tests according to my personal schedule. There is no hurry. And there is no audience who awaits something, you take yourself and the whole discussion far too seriously.

The best thing would be that you do the tests yourself. Nobody will ever be able to do tests to your liking, your assumptions are just too far reaching.

Greetings, Conrad

[synchro1]

@Conradelektro,

I've done the tests. The Planet is overpopulating while resources diminish. A cesium cloud from the Fukashima Daiichi fission plant in Japan caused 50,000 miscarriages in the State of California alone. You pretend everyone has plenty of time. Time is running out! Carpe Dium! This is very important work for the future of mankind, it dosen't help to trivialize it. You post phoned this experiment long enough. You've been shifting my weight and filling the space in with your pet points of view. This is a ten minuite test. You managed to stretch it out for over a period of two long weeks already. People are getting fed up with your nonchalance. You should initiate your own thread if you're going to drift off with non germane projects.


This thread is about the "pulse width clipping of the Reed switch" attached to the bifilar pulse coil face. There's an inverse power to speed ratio that takes over to spin a powerful rotor for practically nothing. The combination of the fluttering field magnet core output coil, coupled with the very low input puts the entire COP where I said it was. These claims are not exaggerated. Let's see you get some positive results for a change, the chronic cynicism is a drag! I'm supplying hope to people, don't let us down.

[Magluvin]

Hey Conrad n Synchro

These bifilar coils you are testing. After you wind them, do you test them to see what freq they ring at?

Also, what is the rpm of the rotor again?  With the diametric mag, we get 1 AC cycle during one rotation.

I made a trifi coil on a 1 1/2in Ecore. 2 strands are series bifi, and 1 strand is not connected to the others. Each strand is 1.45ohm about 37ft each 26 awg.  My bifi, with core pieces tight together and bound to the bobbin(because it made a difference) rings at about 9600hz.  The capacitance between the 2  bifi strands is 3.5nf. The 3rd maybe affecting this. Whithout the closed core to increase inductance, the freq would be way up. Just a tweak of the core and I get max 10.2khz

What Im thinking is you may need a larger coil, meaning more turns, more capacitance, more inductance to get to the freq of the bifi to get an advantage.


My trifi, when I put a sq wave sig, + to the 3rd open ended lead, and the - of the sig gen to the opposite end of the bifi, the bifi produces output just because of capacitive connection in the transformer windings. But when I adjust the sq wave to 9600hz, my input is 4vpp and my output is 70v on the bifi.  My input doesnt change in or out of the freq, as the input is just charging the 3.5nf capacitance and cant input any more than that.  And the ringing is apparent at the freq even when loaded, as compared to normal transformer induction while in an off resonant/harmonic freq of the bifi.    

So I think the coil or the motor needs to be matched with the other to get proper output from the bifi. Romeros motor had 9 mags per rotation I believe, and running about 1200rpm which is about 10khz. He used cores and a backing plate washer, of which Im absolutely sure could have great influence on freq of the coil. I dont think there will be any advantage unless you run the bifi at its resonant freq.

Romero used 7 strand litz.  In his last comments on hows and whats, he said to find a way to increase capacitance in the coils. And I didnt see any caps on those coils.

Zeropoint132 claimed to use 4000 turns bifi of 32 and 46 awg. Self spinning sphere motor.

Romero didnt have 4000 turns I cant believe. I can only figure that he separated the strands and increased his turns and capacitance. Not sure but thats the only good guess there is. he did say he spent a huge amount of time on the coils. Other than winding them, what more work could there have been?


Bifi coils of small number of turns will ring at very high freq. May be good for a power supply, but dunno about for a motor.  Would say less than 100khz for motor use. Power supplies can be in the 20khz to 500khz range.

Mags

[Magluvin]

Also, I think it may be tuff to make a pancake bifi that will operate in the motors freq range. Were probably talking huge diameter even with fine wire. Tesla said the bifi config can be applied to any style of coils.

Mags