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Can you test this fractal PI coil on your coil simulator?
*LOL*
My pattern recognizing eyes saying: It won't work well.
Notice, we don't want to emit and receive propagated EM waves. We want to detect the near-field magnetic fields (H-field). That's the difference between an antenna and detector coil.
*LOL*
My pattern recognizing eyes saying: It won't work well.
Notice, we don't want to emit and receive propagated EM waves. We want to detect the near-field magnetic fields (H-field). That's the difference between an antenna and detector coil.
But if we need to avoid high coil own capacitance, fractal way design can be proper solution, don't you?
At least, we have such coil already, spiral coil is some sort of fractal coil. To be "more fractal" probably need to be more logarithmic.
But if we need to avoid high coil own capacitance, fractal way design can be proper solution, don't you?
At least, we have such coil already, spiral coil is some sort of fractal coil. To be "more fractal" probably need to be more logarithmic.
WM6, it could be interesting to analyse the log spiral PI coil. But I have to code my coil software to support such coils.
It could take some time as I have a lot of things in the pipeline.
But we could start betting. *LOL*
(I don't know how it will perform. I had too many surprises in the past. )
Aziz
WM6, it could be interesting to analyse the log spiral PI coil. But I have to code my coil software to support such coils.
It could take some time as I have a lot of things in the pipeline.
But we could start betting. *LOL*
(I don't know how it will perform. I had too many surprises in the past. )
Aziz
Ok guys,
I can approximate the log spiral PI coil without coding any lines of code. By simply using several concentric coils with log turns count. That should give a good direction, whether the log spiral coil makes sense or not. I will analyse the coil regards to SNR of course as the inner coils (more turns) will pick up less EMI noise. On the other hand the inner windings don't contribute much to the depth detection.
But one can definitely say, that this coil is conventient for pin-pointing.
Expect some results soon...
Anyone want to bet?
It's worth to look for... Good idea WM6. Thanks.
Aziz
Very likely, but can contribute to better sensitivity to tiny pieces of metal.
Can you test from centre "reverse log" lake this on pic, in comparison, too?:
Sure WM6,
but I wouldn't make the inner beginning diameter smaller than 0.3x outer diameter. Starting from the center doesn't make much sense. And we want to have a hole there so we can see through it.
Just guessing the log loop turn factors for a 4 or 5 concentric coils (4/5 coils would be enough to approximate it).
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