I came to the realization of what happens when a spiral wound wire pair is pulled through a magnetic field (or the magnet moved past it) See attached picture.
This was inspired by a link somewhere on this forum but I can't seem to find it. I belive it was user tao that posted a swinging pendulum with a helix of wire nearby.
Note, due to the linear velocity of the spiral being pulled through the magnetic field in the gap of the magnets, it appears in a stationary frame of reference that the wires rotate, just like a simple generator or motor.
However, the forces induced in the wire, per Lenz's law, create a torque. But we are not bothered by this, since we are NOT ROTATING THE SPIRAL. So we are not fighting this torque.
Disclaimer: Its just a concept, I HAVE NOT BUILT THIS !!!
Hi,
Interesting setup for sure. Partly remembers me to the Mervace 'working' magnetic motor that was extensively discussed here in the Forum. And there was a test on moving magnets over / near to a twisted wire pair to see how much voltage / current is induced in it, just the same setup like yours. See this link:
http://www.overunity.com/index.php/topic,1720.msg18151.html#msg18151
So it is very very little output unfortunately, but why? I think simply because it was a bifilar twist / winding so there was no self inductance between wire ends, and any voltage induced in one wire is cancelled (phased out) by the other voltage induced in the other wire.
There is another notice I would like to tell you. You say Lenz would not apply here because there is no rotation on the spiral wires. Well I do think that Lenz would still rule in the same way as usually it does, in your setup it would work against the linear movement because the movement is inducing the voltage / current in the twisted pair and this induced current's flux would oppose the movement, as per Lenz law. It is true that the direction of this opposing force would continuosly change due to the spiralling wires, there should be a resultant force for them, on which Lenz surely works...
Please do not get discouraged by my opinions and do some hands on either this or other setups. A negative test result is positive in the end: it shows ways to alternative methods. ;)
Regards
Gyula
thanks for the link Gyula, I think you might be right about Lenz's law, its realy sneaky and might affect the linear motion and put the brakes on :) Experimentation is the way for sure.
P.S. I should of comented a bit more about the spacing, notice that I show "d=l" in the picture. Actualy it shoudl be "d<l" then we are inducing flux through only one loop not multiple loops which would cancel the induction.
Here's another linear type of generator.
I'm not saying it violates Lenz's Law, it's just an interesting arrangement with one wire only.
I hope it inspires somebodyÃ, :)
P.S.Ã, Ã, Note that the spacing of the wire needs to be the same as the spacing of the magnets (center to center)Ã, This gives maximum performance (highest voltage per linear speed)Ã, Ã, By the way,Ã, Ã, output is AC
If this square wave wire is put on a disk and spun,Ã, at certain speeds, the AC frequency will be resonating with the capacitance between the windings and when that happens the thing might start behavingÃ, in an ....Ã, <ANTIGRAVITY> ... sort of way.....Ã, Ã, HaHaÃ, Ã, :)Ã, Ã, You never know!!
Or, my dear friends, we can use capacitors and inductors to lower the resonant frequency, and when resonance is hit, booom ... get ready for some interesting antigravitational/free energy phenomena.
Here's a diagram: (we can also implement this on a cylinder, the performance might be different, maybe only in a cylindrical layout antigravity shows up, like Searl's device, who knows)