I positioned eight large ceramic magnets around a 4" neo disk centered above and pulsed the magnets with a 12 volt relay from a capacitor and picked output up from my spiral bifilar seated like a halo in the midde. The magnets dance like crazy for about five minutes from a tiny relay pulse behind one of the dancing magnets. My next test will involve a thinner wire output coil. The inclusion of a crystal battery would probably make a perpetual toy carousel, with the dancing magnets dressed up as prancing mares, and rotating LEDS. Could turn out to be OU. I can't wait to see how long it will run for pulsing off the output cap.
http://www.youtube.com/watch?v=-BCdJPWrpLw&feature=em-subs_digest&list=TLOLp-18jYJ2o
Cool! I imagine it would transduce vibrations in the air and environment too. Probably wiggle forever. It might be perpetual motion but it still won't be free energy.
Some people wiggle their magnets at windmills!
@Tinselkoala,
I have a second large neo disk. I believe I can squeeze 12 block ceramic magnets around one 4" neo disk. A second disk in adjacency, with reversed polarity can dance another 12 block ceramics. The relay coil can pulse one ceramic from each side, and positioned between the edges of two arrays side by side, one short pulse should make the two dozen large ceramic magnets flutter for around five minutes. Double the money now!
Nice Demo
I imagine the cause of the 'dancing' is a slightly unsteady table (anything other than a block of granite would suffice) the occasional gentle tap on the table sets them dancing. a puff of air would have a similar effect but because they act in unison its more likely a vibration on the surface of the table.
Its a very good display of equilibrium.
CC
All of the wiggling magnets are LC oscillators.
Quote from: MileHigh on July 04, 2013, 09:34:38 PM
All of the wiggling magnets are LC oscillators.
No they are not.
L = inductive
C = capacitive
I don't see either an inductor nor a capacitor.
Chris:
It's a mechanical resonator. (I should have used the term resonator and not oscillator.)
L = inductive = the mechanical force due to the "invisible spring" of the magnetic field repulsion
C = capacitive = the mass of the magnet blocks (more precisely the moment of inertia of the magnet blocks)
MileHigh
@MileHigh
he he I was going to mention springs and mass. In fact I wrote it up as a comparison to an LC cct. and then deleted it. Your answer is more succinct though ;) Though "magnetic field attraction" would be more accurate.
Experiment repeated ....and..
http://youtu.be/SH1954jEsag (http://youtu.be/SH1954jEsag)
Leo48
I waved a stack of eight ceramic block magnets. I then connected my two large opposed neo disks by axel between two six inch plastic coil spools and an eighteen inch plastic wedding cake server dish in the middle. I have it placed on end with half the magnets suspended below from the top magnets over head. That's room for one hundred and twenty eight waving magnets top and bottem. Half the waving magnets hang down and are supported at the fulcrum edge by the adjacent waving magnets over head. I need two pancake spiral output coils one top and one bottem. Pulsing in rythem rocks them to the wall.
If you wanted to capture the energy of transient vibrations it would be easier and less prone to failure if instead of suspending the magnets using the neo disks you used simple springs.
Then locate the device near a source of constant vibrations (busy road?) you could then convert the vibrations into electrical pulses. of course the amount of energy extracted would be determined by traffic patterns.
It would actually make an interesting wind power alternative. not sure you could get much efficiency out of it though.
CC
The combined strength of the 128 ceramic's is 640 lbs of pulling force. I don't have that many magnets. I noticed them on sale for 2 for .99 right now at Harbor Frieght! The wind rocks them like crazy. Mounted on a rotor they would generate some useful power. Pulsing at one magnet's apex would set the entire group fanning. Higher frequencies may yield vortex channels. 1.59 khz, vibrating frequency of magnets. I'll have to upload a video of this. Really looks awesome! This works great. No need for complex geometry. Everything sits right in position with no problem. The double decker worked too cool for words!
Springs cost a lot of money and are hard to adjust.
"springs cost lots of money and are hard to adjust"
I agree with the first part but not the second part.
At what cost are the big neo magnets. Perhaps not much now because they are lying around. but if you wanted to turn this into a commercial enterprise springs will be cheaper and much more stable.
In fact the little magnets only show the flux lines. You don't need them at all. If you place the neo's on top of a flexible pole and arranged a pickup coil everytime the pole vibrated you would get energy. no small magnets at all.
There are lots of different ways this could be arranged to get the same outcome of deriving energy from vibration. particularly if it was so arranged to resonate.
The best results so far have come from four stacks of five ceramic block magnets, two dangling so it looks like four diamonds, each pair touching at their points from the side. Relay coil is placed at the top of one. The prime mover block magnet rocks a full swing when pulsed with twelve volts through the relay. Pretty impressive travel from a rocker in equilibrium. It sets an oscillation in motion with the other three. I noticed a wrist twisting torque in the adjacent upper stack while holding it. Seems like a real kick has developed from a very tiny input pulse. There are four very stiff kicks that develop and bounce in series from the initial full swing of the prime mover magnet. Appears like an amplification of force at this point.
I tried and failed to upload a video, the magnets destroyed the tape quality. I have to retry. Really a super cool looking setup, an interesting Kinetic Art form at the very least.
Tape?, Tape??, what is this tape you mention?? :D
Looking for forward to the next video. :)
[/u]
Here's a video of the inverse magnets in equilibrium: Here's a new formated video much better aspect ratio and lighting:
http://www.youtube.com/watch?v=3dnlMcZK5Dw&feature=youtu.be (http://www.youtube.com/watch?v=3dnlMcZK5Dw&feature=youtu.be)[/size]
thanks :)
http://opensourceenergy.net/index.php?topic=27.0
I plan to hook a PWM up to the relay coil tomorrow and test for oscillations at different frequencies and voltages. I don't believe springs alone would transfer as much motion between the magnets for now. I'll try for another video. The last video didn't show the ceramics dancing very well due to low contrast.
I improved the generator by attaching a stack of six large ceramic disc magnets to the end of two ceramic blocks attached end to end. Looks like a hammer set on an angle. I wound an output coil around a tape spool, positioned it under the "Hammer head", and did a video. The stack of six ceramic disks bob up and down inside the coil core like a plunger. The large mass and long pendulum arm keeps it oscillating a long time. I don't think a steel spring can deliver the same quality of resilience. I attached a capacitor and diode, and plan to pulse off the output capacitor to see how long a run I can produce. I'm uploading the video tomorrow.
The PWM quit working. I'll have to retry this.
I believe the new extended period of oscillation is caused by feedback from both the power relay pulse and output coil. The mover magnet must be generating a strong field in the relay that turns into a magnetic power pulse. The same must be true of the output coil. A rotor doesn't come to a complete stop like the oscillator. Lenz drag seems to be acting in a complementary way with this set up, depending on positioning! The mover magnet is ready to move backward, with the repulsive field in formation around it already to help repel it away. The presence of the coils definetly strengthens the oscillation.
My new hammer oscillator video:
http://www.youtube.com/watch?v=YwMwhdJE_Vg[/size]
Tesla patented a mechanical oscillator. The crescendo pulse pattern can generate a standing wave that multiplies the force by tens of thousands of times. This waving magnet type oscillator could potentially cause a skyscraper to collapse if pulsed at the resonante frequency of the building!
Check out this awesome video presentation done by high school students:
http://www.youtube.com/watch?v=ASd0t3n8Bnc