Latest: No back torque generator.

[Low-Q]

@Broli
I put three ferrite beads on a wire and it still seems to produce the same voltage. I could not run it as fast because the added weight causes the centrifugal force to pull it away at high RPM's but it was producing about 15mv at about half the RPM that I was getting 30mv.

So it still moves electrons but I did not do a current test to see if this increases the load because I would need to make some changes to get a better test setup at this point.

The current is determined by the wires internal resistance. At only 15 or 30mV it is hard to measure correct current, as the resistance in an amp-meter is relatively high to measure it accurately. If the wire is 1m long and area of 1mm² the current at 30mV is at max 1.7A when you short the coil.
(The maximum effect on a load is when the load has the same resistance as the wire in the coil/generator. Means it can produce at max 12mW.)

First: The resistance is equal with or without the beads on the coil. If the voltage is the same, the current will be the same. The back EMF will be the same.
Second: Beads does not shield magnetism away from the wire, but they increase the inductance, so it at any given AC frequency will increase the impedance in the coil. At DC-current it does not change anything.

Vidar

[Yucca]

I see your point.  Shielding the external circuit would allow the primary voltage that was created on the disk not to be canceled and Yucca's experiment isn't shielded?

Yes, i would like to add shielding to the experiment. But think about this: even without shielding, the gauss level experienced by the nickel plating on the neo disk is much higher than the gauss level present on the circuit wiring.

Yes, shielding would reduce the gauss level at the wires even further and so should multiply any observed effect. But as my observed effect was zero, I think it would still be zero with shielding.

[Yucca]

Well as for the test!
I used a stationary 3" dia. ring magnet and a .125 thick steel disk and by spinning only a single wire as a conductor to the edge of the magnet it is obvious that it does generate current.

I also tested spinning the magnet and tried to obtain a current flow by trying to shield the return line with another magnet. This setup was unable to produce any output!

I made a small video so anyone can see the results of this test.
http://www.youtube.com/watch?v=XSWwrvT_c8w

Superb test rig! seems very well balanced.

[gravityblock]

@broli:  At the beginning of June, I will attempt to build my homopolar test setup, so we can move forward.

@all:  Since it appears this thread is at a stand still, until we have experimental test results, I will make my last attempt with saying the field does rotate with the magnet and I believe should be inline with others who say it is stationary.  I've been give an explanation for this.

Since the fields are near uniform and is moving with time, the field is not changing in time relative to the rotation of the magnet.

The effect is that the field is stationary, even though it is rotating with the magnet, since there is no change in the field over time.  This suggests that the flux is moving with time and is always in the present, and has no past or future.

If the flux was moving through time instead of moving with time, then there would be a change in the field over time even though the field is uniform, and then it would appear to be moving with the magnet.

Once you realize the field is moving with time and the field is uniform, then there is no longer a mystery.

[Yucca]

@Broli and All,

One idea I have had for searching for the possibility of OU in homopolars in general is this experiment, I'm sorry I don't have diagram to explain my idea, but here goes:

Make the simplest homopolar genny, a good sized spinning N52 nickel coated neo disk mag, secured to a high speed motor by a metal shaft.

There should be 1 inch or so of free shaft between motor and neo disk.

Place a metal ballrace on the shaft between the drivemotor and disk.

Construct a static housing out of metal, could possibly use soldered food tins. The housing needs to sit on the bearing and be held still externally, possibly use copper pipe soldered to a hole in the flat face of the tin enclosure. This copper pipe is a push fit on the ballrace outer surface.

So we have a neo disk spinning within a metal enclosure that stays still.

Now we fill the enclosure with a saturated electrolyte solution, whatever is chemically stable and gives highest conductance. The bearing could be the common type with neoprene guard seals, these seals would prevent almost all leakage because the system would not be under pressure and we could arrange the apparatus vertically so the bearing was at the top of the container.

Now when we spin up the disk, a current will flow through the electrolyte between the magnet and the tin suround, which will cause heating of the electrolyte. Of course current will also flow in the mag, the shaft, the bearing and the tin encloseure which will also cause heating.

If we lagged the tin surround with lots of glassfibre mat and foil layers then it would be possible to test for OU using simple calorimetry taking into account the volumes of all the fluids and metals and there thermal coefficients. So after a timed run we could calculate how many Joules the system had gained.

The good thing to this approach is that nearly all energy out could be captured and measured, frictional heating (including electrolyte turbulence), electrical heating, vibrational heating etc.

If the shaft power was known then COP could be calculated fairly accurate. Especially if we took the thermal performance of the system into account by doing some static cooldown runs to measure thermal leakage. Shaft power could be calculated by removing the apparatus from the motor and fitting a simple DIY prony brake which is adjusted so that the drive motor experiences the same power draw and RPM.

Also one could seperate mechanical effects from electrical by machining a metal disk identical to the magnet and spinning that and performing the same calorimetry.

Well that´s an initial idea for a possible experiment that might reveal some interesting info.

note:
A thermal insulating coupler would be needed between the drive motor and the apparatus.