Muller Dynamo

[nul-points]

@khabe[...]
I am a lot more sheep like than you
[...]
neptune

don't believe him, khabe

i happen to know that if people upset neptune, then he kidnaps them off the street, using a bicycle with a wheeled-cage on the back

...and then he staples them to a railroad track 

[nul-points]

...has anyone upset neptune recently?

[nul-points]

Observation:  It is not the RPM that induces the voltage it is the rate of change of flux.

Question:  Is there a way of having the rotor magnet move closer to the core of an induction coil without the core seeing a large percentage of the field.

What I did a long time ago was to use a like pole on one side of the core, a washer on the other side that faced the moving magnet and allowed for a small load to be taken from the coil  while the magnet was moving closer.  The effect of the washer was to give a small rise in induction which would drive the field up in the core, or pulling more of the fixed magnets field down and through the core, as well as the washer had a larger hole in it and I have noticed that magnetic fields tend to bend around the hole, all of this, in my thoughts, were hiding the core from the moving magnet until the distance was very close and then the field from the moving magnet would burst into the core.

What I was thinking with all this was that when the coil started to produce the current flow almost all of the flux lines would now be parallel to the core and when the burst field hit it would snap the flux lines perpendicular to the core giving a very fast flux change and therefore more voltage as well as if I could ever get the core values and timing just right the the burst would help to repel the moving magnet from the core in the direction of rotation.  I called this one my peek-a-boo generator, it kind of worked most of the time and some of the time it ran itself for a while but nothing as good as what R achieved.

the field-snapping sounds good - why not blow the dust off it for old-times sake?

good question about the rotor mag/ core gap - i intend to find out

also to see what Romero found when he experimented with washers and extra mags on the stator


here's my observation:  no rpm - no rate of change of flux

do you not think that the change of flux is happening because the rotor mag is driving past?

is it not possible that if the rotor mag put the pedal to the metal then the flux change might happen more quickly?

fortunately we can discover the answers to these questions ourselves, as we build

np


http://docsfreelunch.blogspot.com

[Tudi]

someone mentioned about the best way to direct the magnetic fields. i thought i make a picture for that.
The idea is to put the coil in a ferite tube, put on top of it a magnet and put a ferite tube inside of it. At least acording to the simulator

[nul-points]

someone mentioned about the best way to direct the magnetic fields. i thought i make a picture for that.
The idea is to put the coil in a ferite tube, put on top of it a magnet and put a ferite tube inside of it. At least acording to the simulator



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interesting that both you and webby are think about different ways to achieve something similar

spookily i have in front of me, as i type,  a Litz coil wound on a ferrite rod with a ferrite tube enclosing it - and it has a (smallish) neo at each end from where i was trying manual passes across the core end

however my inner core extends beyond the tube

when my parts arrive for the Muller rep, i will dig out my PC scope box again and try some of these ideas using my rotor/stator setup


shame about the scavaging, webby - sounds promising

having seen what Romero achieved i'm now thinking should i revisit some of my old experiments and see if i can apply anything we're seeing here

right - i'm off to bed

khabe - you have the kon' - keep a sharp lookout!

g'night all