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Author Topic: Rotating magnetic fields  (Read 10439 times)

Grumpy

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Rotating magnetic fields
« on: November 09, 2006, 05:53:46 PM »
Here are some good links to help people understand "rotating magnetic fields" for those attempting to recreate SM's TPU:

http://en.wikipedia.org/wiki/User:Kevin_Breitenstein/MagneticField

http://www.tpub.com/neets/book5/18a.htm
(PDF version of book: http://www.tscm.com/NEETS-v05-Motors.pdf  )

http://www.eng.ox.ac.uk/~epgmdm/A2/img89.htm

Single phase motors and rotating fields:
http://www.lmphotonics.com/single_phase_m.htm

rotating magnetic field particle accelerator:
http://v3.espacenet.com/textdraw?DB=EPODOC&IDX=US3935503&F=0&QPN=US3935503


Grumpy

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Re: Rotating magnetic fields
« Reply #1 on: November 15, 2006, 08:13:28 PM »

lightbody

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Re: Rotating magnetic fields
« Reply #2 on: January 04, 2007, 02:25:13 PM »
 I'm just going to drop this in here and back away slowly. This is just a link for your refrence files http://www.nr.titech.ac.jp/~htsutsui/study/SMES/
  Babelfish it. It basically deals with SMES (found through google image search of same). Superconductive Magnetic Electrical Storage.
  The idea is to put a current into a SC'ing toroid coil and just let it go round and round, until tapped off for power. They want to put a lot of current in, and the physical forces imparted by the current literally vibrate the torroid apart. You must dig a ditch, line it with concrete and squeeze the coil in there...holding/supporting it tightly. This is no good for a portable unit, so they wind the coil quasi-caduceus style, with two windings, in opposite directions, in order to balance out the forces. Notice that the windings do not cross at 90 deg's like a pure caduceus would. They worked out some other angle of "X" overlap that works better.
  In the images they show you very clearly which way the various forces in a traditionally wound toroid act to flex the structure.  This may be of help in visualizing the dynamics of the physical vibrations some of youze are getting in your TPU's.
  I guess this is just another way to skin a cat, but perhaps a way no one has tried in a TPU? And, if there is a way to get a rotating field from a dc coil, every variation of coil and many variations of current(s) are going to have to be tried.
  Just another one for the 'to-do' box
P.S. Continuing my phi phascination, I'm wodering if the clamied 'perfect damping' of phi is supported by this new 'X' angle...is it a phi-related angle?
http://watermanpolyhedron.com/PHI.html

Grumpy

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Re: Rotating magnetic fields
« Reply #3 on: January 04, 2007, 03:21:50 PM »
reminds me of Walter Russell's books on cosmogony and how there are two opposing helical forces...electric current has this same structure.

When I mentioned "phi", I meant the "electrostatic scalar potential".  There is also "E", the "electrostatic vector potential" which is moving and creates the infamous "A-field". 

"phi" is the "time" component of the EM four vector, ala Einstein and friends.

Since the two electric fields can exist without the magnetic fields - they become quite interesting.

EDIT:

For example:

http://72.14.203.104/search?q=cache:8g2WVOE_NP0J:farside.ph.utexas.edu/teaching/em/lectures/node44.html+electric+scalar+potential+vector+phi&hl=en&gl=us&ct=clnk&cd=1

at the end you see:

Quote
The electric field induced by time-varying magnetic fields is non-conservative, and is described by the magnetic vector potential "A".


Here is a decent image of the fields around a moving sheet of charge.  Keep in mind that the magnetic field of a sheet of charge does not drop off with the square of the distance like the field around a wire does. Also, the A-field does not follow the square fo the distance rule either.
http://physics.nmt.edu/~raymond/classes/ph13xbook/node172.html

(I vaguely understand this.)


AhuraMazda

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Re: Rotating magnetic fields
« Reply #4 on: January 05, 2007, 11:43:32 PM »
Anyone seen this?


AM

AhuraMazda

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Re: Rotating magnetic fields
« Reply #5 on: January 05, 2007, 11:45:42 PM »
Or this:

AM

Grumpy

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Re: Rotating magnetic fields
« Reply #6 on: January 06, 2007, 12:04:03 AM »
GR is Dr. Glen Rein, Ph.D. * Stanford University Medical Center * Stanford, CA.
- now a biophysicist at the Institute of HeartMath, CA
Hmm - Have to study this one.


Yep, seen the Anderson stuff.

AhuraMazda

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Re: Rotating magnetic fields
« Reply #7 on: January 06, 2007, 12:13:42 AM »
Grumpy,
I think these documents between them hold the key. I have been following this line for a while and the more I read, the more I become adamant. Now look at this link:

http://www.linux-host.org/energy/magvid.htm


AM

Grumpy

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Re: Rotating magnetic fields
« Reply #8 on: January 06, 2007, 12:30:59 AM »
Got a directory full of MAGVID info - pull everything off the Yahoo MAGVID site.

Tabletop Pulsar - that ought to blow your hair back.

The "possible operating priciples" section here is all about MAGVID.

Keep all body parts out of the field!

All info on MAGVID is public - inventor is dead - no one will speak of successful replications:

This file is 4 megs...pretty much all of it - give or take a few things.

AhuraMazda

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Re: Rotating magnetic fields
« Reply #9 on: January 06, 2007, 12:37:14 AM »
Grumpy,
I know you have been contributing for a long time. What does your instinct tell you? Personally I believe a rotating field to be essential. I hope GK pull's out an ACE but I am not holding my breath.


AM

Grumpy

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Re: Rotating magnetic fields
« Reply #10 on: January 06, 2007, 05:41:09 AM »
rotating electric field will gain energy - mag field contains it.

not required for radiant energy.   See Turbo's version? 

lightbody

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Re: Rotating magnetic fields
« Reply #11 on: January 06, 2007, 07:20:28 AM »
ahura mazda....jan 5th ..."seen this...or this.. between them these two links hold the key"
  See what or what- URL's missing.
 What? I want to see.

AhuraMazda

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Re: Rotating magnetic fields
« Reply #12 on: January 06, 2007, 11:18:42 AM »

LB,
See the files that were attached in my previous posts in this topic.


AM

Lance

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Re: Rotating magnetic fields
« Reply #13 on: January 06, 2007, 03:58:40 PM »
Regards rotating field in Otto's TPU collector assembly:

I suspect Otto's 'control' coil assembly is producing a rotating field around the collector...

Treating the control windings as two pairs of motor stator windings placed at 90 degrees we would normally drive each pair with a separate AC source with at least one source being phase shifted by 90 degrees (in current) to generate a rotating magnetic field.

NOTE: To use one source and derive the second we would use a motor capacitor in series with the second winding pair to generate a phase shift.

We can also use an inductor to phase shift the signal! - Isn't this just what Otto is doing by connecting the two winding pairs in series. The first winding will add a phase shift for the second!

giantkiller

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Re: Rotating magnetic fields
« Reply #14 on: January 07, 2007, 10:49:42 PM »
Grumpy,
I know you have been contributing for a long time. What does your instinct tell you? Personally I believe a rotating field to be essential. I hope GK pull's out an ACE but I am not holding my breath.


AM

You can breathe now...
--giantkiller.