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EEG EM Basic
ANSYS Electronic Desk Top (AEDT) Student version download link:
  (Built-in license valid until 07/31/24) [zip file 8.3GB] Has some limitations.
Magnetic Circuit - Complete a Magnetic Circuit around the Electromagnet from
"Proj1_Metal_Gain_01.aedt" file.

- Open the file,make a new Directory named "Proj2_MagCkt_Metal_Gain_02"
then rename the original [Proj01_Metal_Gain_01.aedt]  to "Proj2_Mag_Ckt_01.aedt"
(this kind of seperates the design files into their own directories - this is optional)

- Using Boxes and Subtract make the following (Box covers all, then Subract 2nd Box, then third Box
where the round Core is and subtract). Coordinates for the Boxes is below as an aid.

Box1 = Pos -5,5,15; XSize 30, YSize 10, ZSize -30.
[Subtract] Box2 = Pos 5,-5,10; XSize 15, YSize 10, ZSize -20. (Box1 is Blank, Box2 is Tool Part).
[Subrtact] Box3 = Pos -5,5,5; XSize 10, YSize 10, ZSize -10. (Box1 is Blank, Box3 is Tool Part).

Change Box1 to ChinaSteel_35CS210 and set the Core to the same material (or select any material).

Save, Simulation | Validate, Analyze All. Examine the "Fields" by choosing the new Magnetic Circuit then
add more Field Overlays (B Vector or Mag...

Recall the "Coil_Winding" is 100mA and the "CoilTerminal" is 20 turns.

Summary: We setup a Core with a Coil_Winding of 100mA with a CoilTerminal of 20 turns then examined the related
B [tesla] and H [A/m] results.

There are lot more features to be explored; for example, under "Parameters | Assign |Matrix" select include
Coil_Winding - in this case there is one tiny dot in the graph (hard to see), use the marker to get the value; or
Create a Report for "L", etc...

Readme and file are included in the attachment zip.


Attached Files
.zip (Size: 4.87 MB / Downloads: 10)
Hello guys and solarlab, I just noticed this thread. I was hoping for something like this. I have some ideas and also have seen some patents that I would like to try and this could make easier to see what to expect, or if to even build it. What materials to order, what shapes, and so on.

As a disadvantage I see that they will likely not model interesting phenomena that happens at high frequencies like the one-wire system (where very high frequencies and voltages are applied so the magnetic field is not created and the current travels on the surface of the wire).
Hi Kloakez,

AEDT includes "HFSS" which is a high frequency analysis tool. I believe it was the initial simulation program that
launched the original Ansoft products (now ANSYS) a long while ago. It should do all that you want to do.

Open AEDT and select HFSS - go to the "Help" and select "HFSS PDFs" - it's a 4,232 page pdf (more than you
probably wanted to know about RF design; from HF thru Microwave.  Includes it all!

Great! I am definitely looking into it. I got the student version, but I think I will somehow get the full version, as I have the possibility. But I did not catch up yet Guests cannot see images in the messages. Please register at the forum by clicking here to see images.

What I meant when I was describing high voltage and high frequency was things like in this short video:
I wonder if that can be modelled. As an experiment, it is very simple. But I believe that simply using Maxwell equations to compute the electromagnetic field will not contain these phenomena. I am mentioning that related to the objective that you described in the beginning. There will simply (based on my assumptions about how Ansys computes stuff) be phenomena that will not be possible to model using the basic Maxwell equations, it will need to be expanded with the scalar terms.

Nevertheless, I expect it will be useful for many other things.
First off - these types of single wire transmission circuits are easily analyzed using Ansys HFSS and Maxwell, there are scores
of examples and papers on the subject. Russia has been using Single Wire Power Transmission for a long time.

Second off - do not make assumptions about anything, including how Ansys computes stuff, without first studying the
algorithms used. This will get you into trouble really fast. Although it's a complex subject, it's worth the study plus you
will learn a great deal about engineering and computing methods.

Maxwell's Equations are general analytical expressions that describe the whole scope of Electromagnetic behavior - Ansys
and other FEMM tools simply make the process easier and more understandable. They will not do the thinkiing nor theory part
for you however, that part is up to you.

Your attempt at trying to sound scholarly - "expand the scalar terms" - did not work, sorry. If you knew anything about
Maxwell's Equations and their implementation, you would certainly be very familiar with Ansys already; just IMHO however.

BTW, the guy's video is a lark - no technical details and no explaination of the apparatus. This is a common theme for
Youtube Presenters - they seem to assume we are all really stupid, which most are I recon!

My appologies if I sound harsh but I've been down this road too many times and I have no time nor patience left for nonsense.
I'm also not into idle forum chit chat - there are more productive ways to spend time, like reading papers and books, as well as
finalizing the theory and build of the V2 EEG device, plus preparing a provisional patent, should the need arise (still on the fence).

Try simulating the circuit you found on youtube - I'd be curious to hear what you discover.

Have a good one....
I understand, I have been watching some of the over unity forums and it is not easy to find what is useful and what is not.

But I am all caught up, with the Ansys electronics suite, I just got the R1 and later found out the projects are in R2, but they seem to work regardless.

Pretty cool to see the B and H fields. Looking forward to what's next!
Solarlab,do you was posting in the about
simple programme for visualization magnet field in java script ? Could you post it again ?
(12-13-2023, 02:57 AM)chief colbacict Wrote: Solarlab,do you  was posting in the about 
simple programme for visualization magnet field in java script ? Could you post it again ?

Hi Chief Colbacict,

It might have been this one - attached, link is in the text.  Other than that I don't recall, sorry.

Note: Also try the AEDT Student, Magnetostatic, build up a simple circuit [it also includes some permanent
magnets], "turn-the-crank" and walla, 3D fields [lines & waves] appear; adjust the "drawn cartoon" as needed!

Keep the "cartoon" as simple as possible - runs faster and you might not run out of mesh tetras... You can
work-around the limitations, to some extent, by doing "piece-wise-linear models" - e.g. position #1, position
#2, position #3, and so forth (that's how we had to do it in the old days and it sort of worked OK). 

Copy each position to Wordpad (?) - in AEDT just "right mouse click in the cartoon window" and "Copy Image 
{bottom of drop down menu}. Change "Excitations, etc." as required... you'll get the idea... play a bit!


Attached: (also includes the off-line "" app).

Attached Files
.zip (Size: 1.41 MB / Downloads: 15)
ANSYS Electronic Desk Top (AEDT) Student version download link:
  (Built-in license valid until 07/31/24) [zip file 8.3GB] Has some limitations.

Attached is a very simple "Helix Coil" example. Single layer Air core and material is Copper.

Some of the basic steps have been left out to reduce the size of this document. If you get
lost just ask.

Attached Files
.zip (Size: 3.47 MB / Downloads: 6)
ANSYS Electronic Desk Top (AEDT) Student version download link:
  (Built-in license valid until 07/31/24) [zip file 8.3GB] Has some limitations.

Attached the "Eddy Current" version of the previous file.

The Magnetostatic does not do "L" since it's a steady state analysis.
[We knew that, right? Of course, it's intuitive to us who are"skilled 
in the art!" yea - right - ha ha!] 

This "Eddy Current" version provides "L" and other things since it sweeps
the frequency (and other things). Phase information, etc. is available. It's
a little more interesting and includes coupling, resonance point, with some
animation capability as well.

Lots of information given; considering you're analyzing an actual physical
component or device using a CAE Simulation. Check the results against a
benchtop fabrication - the results are likely (should be) pretty close.


Attached Files
.zip (Size: 242.52 KB / Downloads: 3)

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