AC Permanent Magnet Motor test 1

[sudoldas]

This test of PMM is just great...

Are you interested to know more about this?

Go to Google.....

Search for "Top Magnet Generator Free Energy"......

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[ratulloch1]

For those how don't like to do the math 12hz (cps)

12hz*60=720rpm, or use algebra 720rpm/60 = 12 hz (cps)

[MAllen7424]

Tesla stated further that the phenomena had a frequency of 925 cycles per second and a speed equal to Or greater than the speed of light...

[itsmrdavid]

Thats interesting how the current drops under load.

Try this one at low speed again with a stepper motor on the output. (like those motors that are used to position printer heads.) You'll get AC from it - just put a small bridge rectifier on each coil, and the + and - of each to a bulb.

[knowledgemonger]

You are wrong in assuming it is an induction motor. It is a synchronous motor. It is a well known sort of motor. The rotor turns exactly at the same rate as the AC input. In an induction motor, the rotation rate is always a little under the the frequency.

The current drawn by your motor will be out of step with the applied voltage. When you put the load on, the phase between the voltage and current moves towards them being aligned in time. This is why the current is higher unloaded.more

[knowledgemonger]

(more) in a synchronous motor, there is an issue with the rotor bouncing back and forth with respect to the timing of the stator field. This is like the two are coupled via a spring. This is why the motor is so easy to stop with a sudden loading.

In such motors, it is common to place a shorted copper winding at right angles to the magnets on the rotor. This will damp the bounce. You may want to add this to improve the reaction to sudden loading.

[knowledgemonger]

Also try googleing on:

synchronous condenser

You will find discussions of the phase of the current vs the phase of the voltage. This can be a very interesting topic of study.  Great fun can happen if you make the system resonant.

It is a common trick to use an electromagnet for the rotor. Just shorting it makes an induction motor to start things going. Once it is spinning ramping up the DC on it shift operation to synchronous.

[gotoluc]

Hi knowledgemonger,

I do appreciate most everyone's comment. However, you are wrong about me assuming that I believe this is an induction motor as this is not correct. I also know of a synchronous motors and I do agree that it operates on a same principle but they are not built like this. Multiple phases would also be a way to help prevent rotor slip. Resonance is also something that I am testing at this time but I would like to keep the coils AIR CORE.

Come to the Forum topic to see.

Luc

[knowledgemonger]

I am sorry if I assumed too much.

A multiphase synchronous motor still has the problem with the rotor bouncing relative to the stator field. The torque on the rotor depends only on the offset angle. This makes it still act as though it was coupled via a spring.

Adding the shorted turn creates a torque that depends on the rate of change of the offset angle and hence does the damping.

The output of you Wavetek is 50 Ohms IIRC. You can use a power amplifier to reduce this.

[gotoluc]

Hi knowledgemonger,

no problem! I know your general intent is to help.

I have an H-Bridge circuit that I'm repairing. With it I can go up to 50 volts no problem and also at what ever frequency I want. It's square wave but I can use a transformer to make it sine wave if needed. I'll make a new video once I have it working.

Stay tuned

Luc

[knowledgemonger]

Remember that the H-Bridge is going to see a significant glitch on the edges of the squarewave. If you are using MOSFETs, the built in diodes of the devices will clamp the voltage spiking. If it is using bipolars, beware that if a bipolar passes a backwards current, it can take way long to turn off after that. The base gets a lot of carriers pumped into it.

BTW: A transformer will at best just round off the sharp corners of the squarewave. I will still be ugly.

[genebeards12212012]

just a thought.

i was playing around with my oscillocope and signal generator and a simple coil and i zoom in the scope at 7hz and found 7 separate frequencies and one distinct frequency pattern all in the 7hz single frequency. so in short there was signals within signals.

why not look in to this putting 7 base frequencies with one specific frequency in the centre or as close as possible.

either way i have a feeling your on the right track keep it up.

regards gene

[tonysam11290]

It seems to me that it is just like a Newman motor or bedini window motor that works with zero Back emf. If i were you i would try and collect the radiant voltage spike as the coils collapses. It would be also be really awesome if you could somehow get the motor to run at the coils resonate frequency! Keep up the good work.

tony

[gotoluc]

Hi tonysam11290,

Tony, the big difference here that most are not getting is I'm using AC. However, if you know of a Newman or Bedini that uses an AC input in a air core coil please send me the information.

About the back EMF. There is a possibility that the effect of the input power going down when the motor is under load could be because I don't collect the BEMF.

More testing will be done to better understand this effect.

Stay tuned.

Luc

[Digeridude]

Could this simply be an effect of the signal generator outputting more energy to maintain a steady frequency while under load?

[gotoluc]

Hi Digeridude,

No that would not be possible since the output of the generator first goes trough the amp meter and more output would show up on the meter.

Luc

[smokyatgroups]

You don't need the complete sinewave to make this work. Just need the first 0 to 90 degrees and from 270 to 360 degrees. And can still collect BEMF as suggested by GBluer above. Magnets return more energy than than is consumed in attracting them. Can also resonate field coils at drive frequency ...instead of generator driving them. Even less energy required.

[gotoluc]

Hi smokyatgroups,

I am aware that AC is not needed to make a motor turn. However my magnets are opposite poles so let say we use the + of DC at the contact for the 0 to 90 degrees. The rotor magnet would turn half way but to continue the rotation from 270 to 360 degrees the DC at the switch would need a polarity shift since the magnets are now in opposite poles.

Anyways, I think you're missing the point of this demo. Show me a motor that reduces current under load while collecting BEMF.

Luc

[kubikop]

Did you pull the coils out of two microwave oven transformers? if so I can confirm your results because I have a few MOT lying about and like to build motor.... They seem to resonate at just above about 2 MHz if that helps. It reminds me of the Newman Motor but obviously you are using pulsed input not a commutator.

Paul.

[gotoluc]

Hi kubikop,

yes Paul, they are identical MOT secondaries. It would be great if you can replicate and post your findings at the Oveunity topic. You can find the link in the description box next to the video. Keep in mind to replicate you will need a signal generator or a circuit that makes a polarity reverse at every pulse.

Luc

[kubikop]

Hi Luc

I am visiting at the moment but as soon as I get home I will built me one of those.

Do they come out with a wiggle n a giggle or do you have to angle grind the welds off?

I got a nice digital frequency generator / counter so thats not a problem. At 2Mhz they coil looks like it will just about go into resonance.....

What magnets have you used I have 3 x 55Kg Neos but might just use two. I also have a few Microwave ring magnets, any suggestions?

Paul.

[LuisureSuitLarry]

So, your a budist/krisna of some kind?

[gotoluc]

I'm a devotee of God!

All names and forms are His

Luc

[janne808]

Neat. What about voltage though?

[gotoluc]

Hi janne808,

the voltage to the coil was always the same, 10 volts AC

Luc

[janne808]

Thanks, makes sense (sort of!) I wonder what's going on with the current and voltage waveform phases.

[mikep777UTube]

fascinating! please keep going.

[gotoluc]

Thanks mikep777UTube

Luc

[nadinka007]

I tried to find permanent magnet resonant frequency. 8hertz, 12 hertz, 8khz and all kind of hertz. Cant notice any interference on a scope at any time so far.

[gotoluc]

Hi nadinka007,

I'm not trying to find permanent magnet resonant frequency. Just demonstrating an interesting effect between a rotating magnet core and coils using AC

Luc.

[honda4004]

hi tesla states the eart is 8 hertz so do you think that if you can place a wire on the earth rod then get it to times up to 12 hertz you would get the same effect for free ? just intrigued as all this hertz stuff resonance is starting to become clearer to me 9still not all clued up though ) comments appreciated

[gotoluc]

Glad it's starting to become clearer to you!

For me, the more it goes the less I know.

I don't think your suggesting would work! but what do I know! you should try it to find out! that is the way I learn most.

Luc

[knowledgemonger]

The earth has a resonant mode at just about 7Hz. You can think of the earth, the atmosphere and the ionosphere as being sort of like a bell. When it is struck it rings. If you drive it at about 7Hz it will "ring up". Just like a bell, however, it isn't a source of energy its self. It is just a thing that responds to external energy.

Tesla wanted to distribute power using an higher resonant mode. The power would be put in at one point and tapped off where needed.

[GBluer]

Very Nice video Gotoluc

Have you tried to collect any BEMF from the coils?

That might help to brig the current intake down even more.

And charge a cap or a battery at the same time.

[gotoluc]

A collapsing field can be collected when using DC in a coil since the feed polarity is always going the same direction. However I'm using AC which reverses at each pulse so I don't think this could be done since my signal generator has a fixed 50% duty cycle. Maybe by using another circuit with shorter duty cycles and have a flipping recovery rectifying circuit this could be done ... but that may take the effect away. Still too many things to test to answer this one.

Luc

[knowledgemonger]

The back EMF will be collected in your H bridge design. When the voltage and current into the coil are out of phase, for part of the cycle the current will flow back into your DC supply from the H-bridge circuit.

The back EMF and the out of phase current are the same effect just looked at differently.