PCB IB-Coil

[Eric Foster]

Re: PCB IB-Coil

Hi Aziz,

If the tracks are sufficiently narrow, so that they cannot support eddy currents that either a PI or induction balance can detect, then there will be no loss in sensitivity. Also because it is part of the coil pcb, the coil/shield capacitance does not vary from one coil to another. I designed an industrial PI using rectangular printed coils, that sampled at 1uS after TX switch off so that I could detect 1mm diameter brass spheres. There was no signal from the copper shield.

Eric.

[Aziz]

Re: PCB IB-Coil

Hi Eric,

in that case, the coil would be great but much expensive. You would use 3 Layer PCB-Board.
The shielding layer would be a spiral coil like the rx-coil - but left be on one side potential free on both sides. The shielding coil-wire muß be very thin and narrow.
Addition, one could do active shielding circuit (with op-amp) to improve the overall performance (shielding electromag. distortions).

Aziz

[Siliquae_Sid]

Aziz,


Please visit http://www.pulsar-electronics.co.uk and send me an email. I WANT to BUY a copy of your software from you. Name your price (realistically).

[Aziz]

Hi Siliquae_Sid,

I´m sorry to tell you, that my software is not for sale. I have to invest more time for documenting my software. Nobody else me can handle with the software. There are too many parameters to adjust for designing a coil. Furthermore, one needs more physical background information on coils.

I have posted one example of my designed concentric pcb ib-coil for further experiments. More ib-coils are pipelined in the future for discuss.

If you interested, you can ask for a special design. I can proof, whether this is possible or not.

Regards,
Aziz

[Sean Goddard]

How about posting the Gerber and NC drill format files for a Tesoro Compatible 9.5 inch diameter coil?

BTW Not for sale? Not even for $1000? (I'm serious about this amount)!

[Aziz]

Hi,

I do not implemented the Gerber format in my software. I just print out the layout on the printer or creating an image (GIF-format). The size of the coil is restricted on the printing format size. I am using a DIN-A4 format, allowing me ca. 20 cm diameter coils. There are no drills on the coil needed, except the center hole for sight.

I´m sorry, my software is not for sale.

Aziz