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Non-saturating magnetic fields in iron cores are compressible/flexible + movable/tunable + capable of generating transducible (back-EMF-like) field reversals, though where any transduction winding connections can simultaneously current-interact with reversal activities.
Non-saturating magnetic fields in iron cores are compressible/flexible + movable/tunable + capable of generating transducible (back-EMF-like) field reversals, though where any transduction winding connections can simultaneously current-interact with reversal activities.
Thanks, GSM.
Well said. Now if I could only understand it. Well, I'll try. LOL
What if I fed only half a wave into each group of the two groups? See the document. What if I took the cemf from the primary coils and used it to charge caps in a snubber circuit. I guess I could feed that charge back to the battery, but I'm getting ahead of myself. I've got an idea for a solid-state circuit. I hope to include it in the next update of Analysis of the WITTS Generator
Thank you for setting that out so clearly Vidbid.
Yes, the switched input compresses opposite segment fields within the core's circumference, but causes the resultant field to be flexed over the ring diametrically, instead of circularly through it.
The speed/timing of segmented flux compression/induced oscillation must be tuned to relate to the Fe core material and its cross-section construction, whether solid = slow and very lossy, or laminated, or wire, or ferrite, or a hollow sleeve/tube = fast and ultra efficient (as in Hendershot Mk3 at a higher frequency) in order to optimise transducible diametric output with minimum drive quadrant loading.
Thank you for setting that out so clearly Vidbid.
Yes, the switched input compresses opposite segment fields within the core's circumference, but causes the resultant field to be flexed over the ring diametrically, instead of circularly through it.
The speed/timing of segmented flux compression/induced oscillation must be tuned to relate to the Fe core material and its cross-section construction, whether solid = slow and very lossy, or laminated, or wire, or ferrite, or a hollow sleeve/tube = fast and ultra efficient (as in Hendershot Mk3 at a higher frequency) in order to optimise transducible diametric output with minimum drive quadrant loading.
Cheers ............... Graham.
My pleasure.
Thanks for contributing your ideas to this thread.
By the way, the latest version is available for download.
Please see Post #1 of this thread.
Last edited by vidbid; 02-11-2014, 10:53 PM.
Reason: Editing
Thank's for sharing this info on the "motor -generator"
So i had some time today to replicate this experiment
So i cut one of my big ferrite torroid in 2 parts, and wind one half with 700 turns of 0.3 mm copper wire (11 ohms DC resistance and 39 mH inductance ).
Than i fixed a diametric neomag cylinder (i got from a high quality Faulhaber motor ) on the shaft of an electric motor. And made some testing.
But the result is a nice sine wave on the scope under no load, and clearly Mister Lenz is operating when i short cut the coil. Almost double Amperage with load versus no load.
So i tried a lot of speed, but no way to get the acceleration and decrease of power when the load is connected.
I remind that my core is in ferrite, and perhaps the "secret" is in a plain steel core . But no succes for me so far.
So i tried a lot of speed, but no way to get the acceleration and decrease of power when the load is connected.
I remind that my core is in ferrite, and perhaps the "secret" is in a plain steel core . But no succes for me so far.
...
Hi Laurent,
Perhaps the distance between the magnet and the half core also counts, I mean the ratio of the magnet diameter to the (inner) diameter of the (half) core: your magnet seems to be big in this respect (if I compare it to the setup shown in the second video).
Perhaps if you happen to have smaller magnet, about half sized in diameter compared to the one in your picture, also magnetized diametrically?
(The closer the magnet to the core, the higher the Lenz effect becomes.)
Regarding steel core, it must be laminated because otherwise eddy current losses do occur, your ferrite must be good in this respect. I hope the core shown in the video test is not a solid iron (even if it is soft iron, it should be laminated).
Regarding your load, you may wish to use a 10 Ohm resistor instead of the the short circuit, perhaps it also helps seeing the effect. In the second video the input current changes i.e. reduces very little: from about 1.0 - 1.01 Amper to 0.99 or so for the unloaded - loaded case, this may indicate a narrow operational window for the effect I guess.
Thank's for sharing this info on the "motor -generator"
So i had some time today to replicate this experiment
So i cut one of my big ferrite torroid in 2 parts, and wind one half with 700 turns of 0.3 mm copper wire (11 ohms DC resistance and 39 mH inductance ).
Than i fixed a diametric neomag cylinder (i got from a high quality Faulhaber motor ) on the shaft of an electric motor. And made some testing.
But the result is a nice sine wave on the scope under no load, and clearly Mister Lenz is operating when i short cut the coil. Almost double Amperage with load versus no load.
So i tried a lot of speed, but no way to get the acceleration and decrease of power when the load is connected.
I remind that my core is in ferrite, and perhaps the "secret" is in a plain steel core . But no succes for me so far.
And an other experiment and learning.
Good luck at all
Laurent
Hi Laurent,
Very good experiment. Thank you for sharing your experimental results with us.
In terms of a generator, it is truly a mystery at this point.
By the way, I am thinking of an experiment for my Flux Containment Module.
Perhaps the distance between the magnet and the half core also counts, I mean the ratio of the magnet diameter to the (inner) diameter of the (half) core: your magnet seems to be big in this respect (if I compare it to the setup shown in the second video).
Perhaps if you happen to have smaller magnet, about half sized in diameter compared to the one in your picture, also magnetized diametrically?
(The closer the magnet to the core, the higher the Lenz effect becomes.)
Regarding steel core, it must be laminated because otherwise eddy current losses do occur, your ferrite must be good in this respect. I hope the core shown in the video test is not a solid iron (even if it is soft iron, it should be laminated).
Regarding your load, you may wish to use a 10 Ohm resistor instead of the the short circuit, perhaps it also helps seeing the effect. In the second video the input current changes i.e. reduces very little: from about 1.0 - 1.01 Amper to 0.99 or so for the unloaded - loaded case, this may indicate a narrow operational window for the effect I guess.
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