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Author Topic: TPU - General Discussion  (Read 350373 times)

dutchy1966

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Re: TPU - General Discussion
« Reply #45 on: October 04, 2007, 03:07:03 PM »

That means if you deform the material it produces a voltage.
It's the same stuff as piezo effects with electric fields, except this is magnetic phenomena.
 
EM

Hi all,

EM, GREAT find! compliments!

Now remember SM saying this:  No they are not piezo stacks, but they do look like it.....

hmmm, think we have another match....

regards

Robert

Grumpy

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Re: TPU - General Discussion
« Reply #46 on: October 04, 2007, 04:06:37 PM »
Magnetostriction does not explain the "flipping over" anomoly.  It does not explain the term "rotational magnetic receiver".

Quote
September 27, 2006

It is really great to see more "hands on" activity here. It may be relevant to convey the importance of the relationship
between the resonances/wire lengths of the control/collector coils. I think of it a a rotational magnetic reciever. Some of
the tests that I have carried on the coiols that have visible control windings indicate frequencies in the megahertz range
which would make pc scopes un usable ...I could be wrong...we will see. We are Searching for a rotational Kicking
field.that can be accelerated by applying harmonics This could take a while. It is unconventional. Sharing results..even
failures will help every body. Sharing limitations will slow everybody down. It would be great if more those who seem to
have a clear understanding would do some winding to confirm their expectations. Perhaps Luck will come into it I
remember a fellow who said "The more I work and act the more luck I seem to get"

Lastly, magnetostriction does not explain the 'tune to close to the frequency of conversion and you get blown to hell issue'.

Not trying the knock the theory, just pointing out some issues with it.

BEP

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Re: TPU - General Discussion
« Reply #47 on: October 04, 2007, 04:28:00 PM »
Hopefully this is a good 'restarting point'. Since I'm on my third iteration of this TPU lookalike I can only be sure of one thing:

All of the differrent discoveries and ideas are going to come together and we'll all party!. I am quite sure the work and results - from GK (wave interaction), Wattsup(and others) field cancellation, IS (what can I say he's done it all!), Mark( brings precision, perception and great clarity ), all the long timers that are probably saying 'oh!, here we go again' - will still need combining.

I'll not dig for it because I'm sure someone knows the exact stansa and verse but wasn't there a reference to methods of using magnetic fields to 'image' objects? Say MRI? Do you know where that banging noise comes from when your head is in there?

BTW @IS

A signal generator is an oscillator, albeit a fancy one  ;)

@Grumpy

On one earlier 'Cook Coil' test I did I found the coil resonance at 7.5kHz. That didn't explain the low buzzing noise on the work bench. The bundle of iron wire was vibrating at a frequency much lower than 60Hz. I wasn't equipped to measure it at that time. That buzz didn't show up on the scope even when I dozed off waiting for the trace to cross.
The tuning and explosion issues are classic magnetostriction problems. Positive feedback at the right frequency has been said to damage bridges. Who's to say the material resonance frequency isn't the 'third'.
Isn't it common for a sound or RF tech to refer to the second and third harmonic as 'the second' and 'the third' and only use the word frequency when talking about a specific frequency? It is in my circles.

My mind is very open on all this so If I'm off-base please shoot me down  ;D

EMdevices

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Re: TPU - General Discussion
« Reply #48 on: October 04, 2007, 04:33:17 PM »
@ Grumpy,

tao just wrote,   if you tune too close to the vibrational mode of the ring , it might very well BLOW UP !!!
Think what happend to the Tacoma Bridge that broke apart due to resonance.  Think what happens to wine glasses when singers hit the right cord.  Think what TESLA did with a small vibrator attached to a building? 

Physical resonance is distructive if pushed to the limit. !!!

Regarding the upside down turn off phenomena, I'm not realy sure why that happens?
and it sounds like SM didn't either.   Once we duplicate this thing we'll be able to experiment and find out why.

@all
Here's a usefull chart.  I notice that we need a DC bias to bring the magnetisation close to the SATURATION (close to the flat curve) region, since from the chart below we see that's where the magnetostriction is largest  (meaning we get the most STRAIN per B-field.)

This thing is almost analogous to a Speaker and Microphone in feedback causing a ear piercing sound, except the mode of resonance here is LONGITUDINAL and no sound is produced.  Ã‚  I think GK mentioned this concept a while ago.  How true it seems now.

EM

P.S.  One other point I wanted to mention,  the gyroscopic effect now makes sense.   Any vibrating objects will exitbit it.   It doesn't have to rotate.   For example the SEGWAY use the gyrochips, which are Integrated Circuts (ICs) with small piezo elements that vibrate inside, and they can detect angular changes.  So any vibrational object becomes one with the background frame of reference !!!  (what ever that is  LOL)
« Last Edit: October 04, 2007, 05:00:39 PM by EMdevices »

BEP

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Re: TPU - General Discussion
« Reply #49 on: October 04, 2007, 04:58:37 PM »
A magnet can be used to raise Q and saturation point as well as a DC bias.
--
Hmmm .... Not only does an object in motion tend to stay in motion but it tends to continue in the same direction  ;D

Earl

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TPU - General Discussion
« Reply #50 on: October 04, 2007, 05:30:44 PM »
Hello Mac, (short for Macedonia)

I am sorry if I am slow to understand what you are saying, so please let me ask you to be more precise.
Are you saying;
[snip]

Now I know you have the answer to starting the current flow with your coil and Buzz11 diode system, as I had indirectly eluded to this when I said pulse the current from the inducutors at 120k, into a cap, but I would like to know where you can get enough power to run an RF Generator and what this will do in the system.

@wattsup
A low-power osc could easily be powered by a 9V block battery.  Only few mA are necessary since the oscillator is only serving as a catalyst.

I had thought that the great inspectors that have looked at SM's devices had checked for any RF or other wave or signal emmanations and I do not remember any of them saying this to be so.

The TPU documentation clearly shows that the TPU was putting out a lot of RF hash and would interfere with correct operation of power converters if it got too close.

And why are you talking about the atom bomb?
MAC is talking about an uncontrollable energy avalanche.


And why are you saying SM is like Tesla. Tesla brought his products and inventions to the world, openly patented them and we use them today. SM hid his device from the world and we are not using them today. There is a very big difference. I am sure if Tesla was alive today, with the communication as it is, he would be on the internet explaining every little aspect of his systems, his knowledge, etc., and we would not have to play guessing games until the moon turns blue. I don't think you can put them on the same stage.

Negative.  You are suffering from self-delusional hero worship.  Tesla took the secrets of his electric Pierce-Arrow with him to the grave.  SM and Tesla are maybe identical twins, if the TPU is not a fake.  As much as Tesla is my idol, he was not only extremely intelligent and very ecentric, but also a chicken shit.  Yes I know, the truth hurts.

Regards, Earl

EMdevices

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Re: TPU - General Discussion
« Reply #51 on: October 04, 2007, 05:56:18 PM »
Here's an interesting paragraph:

Composite Materials
 
  While Terfenol-D and other magnetostrictive materials are potentially important as actuator materials, some limitations have limited their adoption over more traditional piezoelectric and electrostrictive materials.  The two most important issues  are eddy current losses due to high frequency operation, and poor durability.  Due to the time changing magnetic field used to actuate Terfenol-D, eddy currents are developed within the actuator material itself and hamper its use at frequencies above 2 kHz.  Polymer matrix composites, using a particulate form of the magnetostrictive material, essentially eliminate eddy current losses to 100 kHz and beyond.  Furthermore, the polymer matrix used to bind the particulate produces a relatively tough material that can better accommodate tensile and shear loading states.  Hoping to take advantage of these benefits, research into magnetostrictive composite materials has been performed at UCLA since 1994.   

Eddy current losses?   Yes !!

Reserach at UCLA, in SM's backyard, since 1994?   Wow !!

@ BEP

It's true about the magnet doing the same as DC bias, but in a ring how do you use it Longitudinally ?    :)    I'm seeing a DC bias coil now in the Open TPU  LOL  (it's the fat red coil under his right hand)  :)

EM

P.S.  By the way, Terfenol-D is one of the best magnetorestrictive alloy, but pricey $$$$
REF:  http://aml.seas.ucla.edu/research/areas/magnetostrictive/overview.htm

Earl

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TPU - General Discussion
« Reply #52 on: October 04, 2007, 06:21:21 PM »
@ALL

Here is an idea for a simple quick and dirty quadrature oscillator.
Important are identical coils and careful and symmetrical constuction.

The inverters could be 74HC or CMOS or TTL or LS or S or RTL or tubes.
Pick your poison.  I suggest 74HC inverters, maybe Schmit-trigger input??

With CMOS inverters, it may be desirable to insert series resistor on output
gate feeding coil to quasi form a current output instead of a voltage output.

If the frequency bandwidth is sufficient, the best inverter would be the old
HEF4007B from Philips / NXP.  It has access to the sources of both the
N and P channel FETs and it is possible to insert resistors in each source
thereby turning the output stage into high-impedance constant current output
instead of low-impedance voltage output.  When feeding inductance, this
tends to give sine waves instead of square waves.

360 / 4 coils = 90 degrees = automatic rotating field

@BEP, thanks for the great drawing

Regards, Earl

Grumpy

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Re: TPU - General Discussion
« Reply #53 on: October 04, 2007, 06:28:26 PM »
Bridges breaking and lightning strikes are not the same.  SM used the term "explosion" - that implies a sudden surge not a slow buildup 

You will not get a "lightning strike" with megnetostriction.

I have used Terfenol-D in actuators (for an electro-mechanical switching device) - if this was used the the TPU would not be "cheap" to build.  You can get sample kits of this material - or at lest you used to be able to.

To get a lightning strike - you got to screw with the "potential"  ;)

BEP

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Re: TPU - General Discussion
« Reply #54 on: October 04, 2007, 06:43:10 PM »
@Earl

You're welcome.

There are a couple of things I'm sure of.
1. The dimensions are fairly close
2. The four coils are not all wound in the same direction (see photos)
3. There are a total of six coils not counting possible coils in the two legs.

Possible:
1. There is a slit at each quadrant allowing more flex
2. The two 'possible' slits I see are not aligned indicating a possible intended phase shift in mechanical movement
3. Waves of magnetostrictive movement can follow standard wave functions - like interference, summation, cancellation, harmonics, FFT, etc.
At least #3 is the only way I can explain why I pump high freeks in and it buzzes below 60Hz.

EMdevices

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Re: TPU - General Discussion
« Reply #55 on: October 04, 2007, 06:53:26 PM »
Nice Drawing there guys !!  I like them.  Soon we will all have TPUs !!!

Here's the OU principle  !!!

What do you guys think?  This is what I was saying before.   We can feed the Output back to the Input phase shifted appropriately  so it  AMPLIFIES  !!!    (positive feedback)

EM

P.S.  This device seemes to be the equivalent of the MRA, which used PIEZOELECTRIC phenomena.  This uses the MAGNETOSTRICTION phenomena. !!!    Ponder this diagram and then look at the previous chart I posted, and you will see why this works.   The iron rod can develop quite an expansive force !!!   Look at the chart,  Million pounds of force !!!   (see the legend, the material deforms under STRESS, that's what the multiple curves are for)

I added the DC-Bias coils.  These can  be designed to draw very little current (lots of turns).   We can also use a magnet to accomplish the same task of pushing the material into Saturation so the Magnetostrictive phenomena is amplified.
« Last Edit: October 04, 2007, 07:14:00 PM by EMdevices »

Earl

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TPU - General Discussion
« Reply #56 on: October 04, 2007, 07:18:25 PM »
@EM

What I think is that the million pounds is no help.  Since your output depends on classical Faraday induction, it is the speed of movement that is important, nothing else.  Perhaps not even displacement amplitude, only speed.

Regards, Earl

duff

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Re: TPU - General Discussion
« Reply #57 on: October 04, 2007, 07:20:54 PM »
.
« Last Edit: November 06, 2007, 05:32:46 PM by duff »

EMdevices

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Re: TPU - General Discussion
« Reply #58 on: October 04, 2007, 07:21:00 PM »
Yes Earl, speed is important as well!!   At resonance it will VIBRATE and move fast.    But realize this,  Faraday Induction creates a BACK FORCE on the rod.   So going by the charts we see, this DOESN'T MATTER FOR THIS PHENOMENA, since the force it can apply is HUGE !!!!

EM

dutchy1966

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Re: TPU - General Discussion
« Reply #59 on: October 04, 2007, 07:56:08 PM »
I'll not dig for it because I'm sure someone knows the exact stansa and verse but wasn't there a reference to methods of using magnetic fields to 'image' objects? Say MRI? Do you know where that banging noise comes from when your head is in there?


BEP hi,

I guess you mean this phrase:

13.   Has anyone ever read the reports about our experiments with what was called, the magnetic shadow casting material?
Those experiments tie in with to our development of the power unit.

Robert