Proof of concept - perturbing a static magnetic field

[dutchy1966]

I got everything hooked up for a quick test, but sadly nothing good to report yet.  So, here is a quick list of phenomena I encountered, all to be expected.

1. The Neo magnets are strongly repelled from the center of the coil when it is in operation.
2. Very strong back-EMF pulses are observed, both with and without the magnet in the core.

I pulsed the apparatus at 0.1Khz and 1KHz with no change.  I used a small piece of ferrous material to "probe" the magnetic field strength, and no difference was noted when the device was engaged.

If you want to see the experiment, I threw some pics up at http://overunity.pearsoncomputing.net

Testing continues...

Hi Eldarion,

great to see you have done some tests already1 

There two things I'd like to comment on:

1. You say the neo get strongly repelled from the coil. This is probably to be expected for the reason that the patent tells us that the windings in their device are put in slits/grooves in the magnets. This will then keep them in place at any time. Also the coil and the magnets shouldn't move away from each other as that probably will lower the output.

2. When I look at your schematic I notice you have something different compared to the patent setup. In the patent the two coil are connected together at the lower end and then connected to ground. in your version you have connected the top ends together connected and tied to the supply voltage. My feeling tells me that this might make some difference.....

For the rest...Keep up the great work!!

regards

Robert

[eldarion]

Robert,

Thanks for your encouragement!

I can "lock" the Neos into the core by sliding the stack slightly on an angle so that there is a tight friction fit in the core, and they seem to stay put.

I should really have two separate positive power supplies, one at, say, +60Vdc and one at +150Vdc.  I will be constructing those two supplies for the next round of tests.

[starcruiser]

eldarion,

How about using corks to contain the magnets?

[bob.rennips]

1. You say the neo get strongly repelled from the coil. This is probably to be expected for the reason that the patent tells us that the windings in their device are put in slits/grooves in the magnets. This will then keep them in place at any time. Also the coil and the magnets shouldn't move away from each other as that probably will lower the output....

Well pointed out Dutchy. I hadn't twigged the reason for having the windings slotted into the magnet. I'd discounted the slots as just a way of making the patent seem complex and unattainable without engineering facilities.

And thanks to Eldarion. Even an unsuccessul experiment, has yielded some very useful information. As I'm using a coil for the static field I'm wondering whether I need to epoxy each layer to ensure all coils are totally static relative to each other. One to put on the try list.

[kames]

Thanks bob.rennips  for creating a separate thread.


That is what I am using as a control unit. C1 and R1 have to be adjusted for the shortest pulse the circuit can handle.  R6 is only for protection. L1 and L2(L3) can be adjusted for a voltage required. The higher voltage the higher slew rate. R4 and R5 are needed to ?kill? ringing. Magnet is used to create a very tiny phase shift. My oscilloscope doesn?t show any difference in phase shift but in anyway it should be there.
I am planning to use this circuit for further testing with one of my tpu.
The rest of the tests are ahead.

Kames.