Vibrating Magnet Coil test 1

[michaeldiaz2]

Have you thought about using a sphere magnet to reduce noise?

[selfonlypath]

I could be wrong but I assume you use 50% duty cycle square wave.

Once you have found resonant frequency, have you tried tuning duty cycle that might even be more optimum (less current) ?

How about a software control diode plug to extract specific spikes ?

[jeannacav]

Hi Luc,

Thanks for another crystal clear video.

I just noticed this past week that every time I adjust the frequency or the voltage they maintain a reciprocal relationship. What I mean is every time the frequency goes down the voltage goes up and the reverse. I have tried this a few ways, and no matter what I do that causes the change, - the resistance or # of turns... anything, so far this relationship displays itself. I noticed it today on a few of your videos now as well. It may be important!

[youtuubbguy66]

Just a quick question... Isn't there no chances of breaking your frequency generator with the BEMF when using a square wave type of frequency?

[gotoluc]

Hi youtuubbguy66,

I've been doing this for close to a year now and have had no problems. I also paid only $25. for this SG!... one of my best buys.

Luc

[smokyatgroups]

Magnetss motion is trying to align itself with the internal altern. field of the coil. As it has a mass of its own, it can't stop and reverse on a dime like the coil and so the induced voltage won't exactly match the applied waveform. You might be able to harvest some nice spikes off either side to charge a battery if it were run off a 555 FET & battery arrangement.

[gotoluc]

I would be interested in a schematic that would do this.

Thanks for sharing

Luc

[smokyatgroups]

Should monitor the induced voltage across the coil make sure it doesn't get too high, or might damage O/P stage in your generator. Prbly need to slide the original core into the coil to establish current draw with normal inductance. The magnets presence affects the inductance.

[gotoluc]

Hi smokyatgroups,

barely any effects of inductance with magnet. Inserting the magnet and holding it down (not vibrating) dropped the amps from 79.7ma to 79.5. Keep in mind the magnet is only 1/2" x 1/8" round. Inserting the original laminated core 1-1/4" x 5/8" x 3/8" it drew 39.15 ma compared to 23ma with vibrating magnet which has next to no inductance value.

Luc

[kissmyhho]

the only thing i can imagine is that the faster it oscillates the more energy rebound it gets from bouncing and there uses less current.

or maybe the current goes down but the voltage goes up.you should measure your watts to see what is going on.

ps i really appreciate you videos and think you are an excellent communicator.

[gotoluc]

Hi kissmyhho,

thanks for looking and your positive post.

Luc

[ZEROPOINT132]

Hi.

It seems that you are forcing the magnet to change its polarity, I will send you a video of an experiment being done by TheGurutoYou. see what you think.

cheers.

[gotoluc]

Hi ZEROPOINT132,

Thanks for the video link to TheGuru2You.  It could be the similar principle. Definitely worth investigating.

Luc

[GUILDGOB]

Theres interest. Keep going and good job =)

[cenlasoft]

Hi,

I love your work. I am interested in resonance. I have a new signal generator and I cannot get the same results. What are your settings on your SG. AC or DC. I can get the magnet to flip if I use a battery and just turn the power on and off.

Thanks

Curtis

[gotoluc]

Hi cenlasoft,

All SG are AC output. You should see good activity between 4hz to 8hz. Using on off DC will not give the same results as it is unidirectional. AC alternates the direction of the DC at every Pulse (polarity flip)

Hope thus helps

Luc

[genebeards12212012]

try x100 and swich the db between 20 and 30 db and the magnet with turn over on the polles or some time beats like a hart beat,

[gotoluc]

Hi genebeards12212012,

thanks for the suggestion.

Luc

[GBluer]

Cool Gotoluc

I wounder what a small round magnet would do in there.

[gotoluc]

Hi GBluer,

yes, very interesting. All configurations will be tested to find the best combination.

Stay tuned

Luc

[Drevtoobe]

There are probably two effects taking place. Firstly, by putting metal in the core you have increased the inductance of the coil. Higher inductance means less current draw. Secondly, you have created a motor. The vibrating magnet is creating back-EMF further reducing the current draw of the coil.

[gotoluc]

Hi Drevtoobe,

I knew you were going to be around and be the first to post about inductance added when inserting the magnet. You are sharp but I though of it before doing the video. Inserting the magnet and holding it down dropped the amp from 79.7ma to 79.5. Keep in mind the magnet is only 1/2" x 1/8" round. To please you I inserted the full original laminated core 1-1/4" x 5/8" x 3/8" and it dropped to 39.15 ma. I agree the magnet is creating some kind activity and should be researched.

Luc

[Drevtoobe]

Hey Luc good for you for making that test ahead of time. I concur with what you are saying about the added inductance having only a marginal effect on the current draw. Your excitation frequency fundamental is very low, and the extra inductance would only affect the very high harmonics in the square wave. I was keeping it simple.

Assuming the back-EMF is the real cause of the current decrease, here is a simple experiment: Stick a finger in and stop the "motor" from "turning".

[gotoluc]

That was a quick reply!

That simple experiment was done when I explained to you holding the magnet down inside the coil would bring the draw back to 79.50ma from the 23ma when vibrating at best frequency.

Luc

[Drevtoobe]

Hey sorry Luc I read your comment and got the wires crossed in my brain. Rereading it I can see that stopping the "motor" had a negligible effect, so much for the back-EMF theory. Inserting the laminated core, effectively increasing the inductance, gave you significant results, and I thought that they would be very small. Well I am pretty clueless sounding tonight, looking forwards to a possible follow-up clip.

[gotoluc]

Okay.

Do you have the equipment (ability) to experiment with me on this so you can help speed the understanding of this?

Also, I decided to connect the gen. out to my magnet motor (in my videos) to observe the movement of the magnet and to my surprise the motor turns full 360 degrease turns up to 7hz with no timing trigger. The torque of the motor is incredible at 5hz and the interesting thing is the more load I have on the shaft the less ma it draws?

Luc

[codygillespie]

Thats interesting! I was wondering what you have been up to : ) I have herd that smacking a magnet around can weaken its strength, maybe something to look out for. Regardless, this is an interesting effect, my function generator crapped out on me, otherwise i would go play with

this : (

[gotoluc]

Hi codygillespie,

sorry to hear your FG is out of service since this seems to be an interesting effect to study.

Luc

[LuisureSuitLarry]

Nice vid

[InventorGadget]

hmm.. interesting, does the magnet loose power / demagnetize ?

[gotoluc]

Hi InventorGadget,

too early to tell but in time I should be able to verify.

Stay tuned

Luc

[Can101276]

Wow... very cool!!!

If you used a bifiller coil you could take advantage of the moving magnet!!

[gotoluc]

Hi Can101276,

yes, that will be one of my test to be done very soon!

Stay tuned

Luc

[honda4004]

hi could you place a droplet of distilled ionised water in between and get the sweet spot frequency that it may be dissociated (splits at ) should be 42712.2 hertz john keely and now bob boyce state this

[gotoluc]

Hi honda4004,

the magnet at this time can only vibrate up to 180 Hertz, so it would not be possible to do a test at the 42000 Hertz rage.

Luc