Acoustic magnetic generator.

[verpies]

I'm sorry for wasting everyone time hence i have promptly removed the video swiftly without second thought.

You've not wasted anyone's time mate. It's all good fun, and part of the learning process...

Yes,  it was educational and because of that it was not a waste of time.
Now, when you guys see other people make similar error, do point it out to them.

Eliminating error modes gives more chance for real anomalies to stand out.

[verpies]

I'd just like to point out that - as Verpies said - we're talking about 2 different devices on this thread. It's a bit confusing.
Magpwr & I were testing different things.

Yes and that means that conclusions about one device do not apply to the second one.

I'd still like to work on the NAR aspect of this...
1) Cancel out the electrostatic field of the piezos if possible - maybe 2 opposing ones
2) Put piezos in 2 or 3 dimensions on the target coil
3) Try harmonic resonances & beat frequency interactions...

4) Pay attention to the angles between acoustic waves and magnetic fields.
5) Pay attention to spin polarization times (T1).
6) Pay attention to the gyromagnetic ratio of the vibrating medium. e.g.: 1132Hz/Gauss for Copper,  1110Hz/G for Aluminum, 1058Hz/G for Manganese, 267Hz/G for Zinc, 138Hz/G for Iron, etc...

[verpies]

If you replace the piezo with 2 disks of foil or metal of the same size - what happens then? (I do seem to be at the 'capacitive coupling' stage of my education... So forgive me if everything looks like that right now)

A bit of warning:
Many plastics have ferroelectric properties and makeshift capacitors formed out of such plastics will form ferroelectric capacitors.  Read this.
This news would have a high yawn factor if it was not for the fact, that all capacitors formed with ferroelectric plastics are also piezoelectric by symmetry considerations.

In other words - it is easy to build a ferroelectric/piezoelectric capacitor inadvertently ...and never know about it.

Perhaps a good test would be to use a decent sized ceramic insulator between piezo and coil - it'll transmit the sound but not the electric field... I tried two opposing piezos today - but the output was the same as with one. It was a crap experiment though...

The way to get rid of capacitive coupling is not to add a high-permittivity dielectric but to decrease the permittivity of the gap and/or to add tight Faraday's shielding composed out of a good conductor (e.g. copper foil). 
The latter also works well as a remedy against unwanted EM coupling.

[ambadytesla]

is it work with 6khz??

[synchro1]

@Verpies,

Here's an interesting note on acoustic frequency:

"Hi Norm: I've found a way to "tickle" the barium ferrite magnets... you can get any output freq you want as a result of the "beat" freq between 8KHz and 174.9KHz. A barium ferrite pair resonates audibly loudest at exactly 8KHz. I'm using your spool of magnet wire inside the gap between the halves to turn the magnet into a "speaker", and you can hear it "sing". The coil is connected to 8KHz from a sig gen".