PCB Rogowski coil

[saivirinchi35]

Hmmm.. But PEM guys published this paper wf-ray from (uni - Nottingham)
http://www.pemuk.com/how-it-works.aspx

And do you think Pem will reveal you their latest or feed you the old?

Ya, obviously that's their IP, but from my primary probing to the circuit I got that they are using
1. off-set compensation stage (Photo attached)
2. Some Low pass filter stage on the integrator opamp as mentioned in the previous MSG

[Terry Bites]

The PEM circuit is not subject to patent or copy right- they did not invent this topolgy. Only the publication is copyright. Is just an integrator with a high pass to remove the DC offset from the input.
This is useful. www.lem.com%2Fen%2Ffile%2F1871%2Fdownload&usg=AOvVaw0xhZAplOPOlFrNmtq38Tj8

You can scale the TI pdf  For referrence, the pitch of the connector is 0.1". It even give its the drill sizes for you. Originally created with Altium.
(www.ti.com/lit/pdf/tidrm38?keyMatch=PCB%20ROGOWSKI%20COIL) and print it on film.
I've used Cannon Type E for laser or 3M CG3480 for inkjet. It works far better on laser- a trip to your local Fedex if you don't own one.

Is this what you need?

[Hydron]

Altium sources are located here if anyone is interested: https://www.ti.com/lit/zip/tidrm33

[Terry Bites]

Happy days then!