Confirming the Delayed Lenz Effect

[kEhYo77]

My replication should be ready within a day or so, for now: a little teaser of my new setup.
24 magnet poles, 20 generator coils, almost no cogging.

[DeepCut]

WOW !!! Keyho, it's a thing of beauty

Love the over-arching motor mounts, looks like a UFO ;+}

[kEhYo77]

Thanks, laser cutting is quite expensive but it is worth every penny

[DeepCut]

I've spotted something of concern in my build

The weight of the coil asembly, once it is placed on the lower perspex sheet, it depresses it very slightly and causes the RPM of the rotor to change because of the change in stress on the bearing.

I am now rebuilding the device so that this can't happen.

I'll post results.

[CRANKYpants]

Dear Thane, I have to admit that I was to fast by pulling conclusions about that the Delayed Lenz Effect only has to do something with the core material... In fact I think that you are right (again and again, quite annoying!) That it has to be a combination of both... So a properly designed core can help delaying and the Bifilar wound series connected coil can help delaying the counter EMF effect even more. I came to this conclusion yesterday evening when trying only a really thick wire wound coil, which doesn't give me any good delayed effect at all. So based on this experience I had to conclude that the Lenz Delay has to be a combination of both.

With Kind Regards, Overunityguide

DEAR OVERUNITYGUIDE,

I HATE TO TELL YOU THIS BUT YOU MAY HAVE TO INCLUDE "SKIN EFFECT" IN YOUR ANALYSIS  SINCE IT HAS AN EFFECT ON WIRE AND CORE RESISTANCE AS FREQUENCY INCREASES.

CHEERS
T

Skin effect http://en.wikipedia.org/wiki/Skin_effect
From Wikipedia, the free encyclopedia

Skin effect is the tendency of an alternating electric current (AC) to distribute itself within a conductor with the current density being largest near the surface of the conductor, decreasing at greater depths. In other words, the electric current flows mainly at the "skin" of the conductor, at an average depth called the skin depth. The skin effect causes the effective resistance of the conductor to increase at higher frequencies where the skin depth is smaller, thus reducing the effective cross-section of the conductor. The skin effect is due to opposing eddy currents induced by the changing magnetic field resulting from the alternating current

Skin effect reduction of the self inductance of a conductor. Since the skin effect causes a current at high frequencies to flow mainly at the surface of a conductor, it can be seen that this will reduce the magnetic field inside the wire, that is, beneath the depth at which the bulk of the current flows. It can be shown that this will have a minor effect on the self inductance of the wire itself; see Skilling[8] or Hayt[9] for a mathematical treatment of this phenomenon.

Note that the inductance considered in this context refers to a bare conductor, not the inductance of a coil used as a circuit element. The inductance of a coil is dominated by the mutual inductance between the turns of the coil which increases its inductance according to the square of the number of turns