Re: LF: Rogowski-coils for RF measurements

[DK7FC <selberdenken@posteo.de>]

...now i started to build one, see attachment.
Not yet sure how it will perform. DON'T bother me with calculations 
telling it won't work! ;-)
73, Stefan

Am 22.10.2018 15:04, schrieb DK7FC:
> Hi all,
>
> Has someone ever build (homemade, not bought!) a Rogowski-coil for RF 
> current measurements?
> https://en.wikipedia.org/wiki/Rogowski_coil
>
> It could be used to measure leakage currents in a tower near the 
> antenna wire for example. Or for measuring RF currents into a pole of 
> a guide rail, for example :-)
> I'm planning to build one and i thought i use 0.4 mm diameter enameled 
> cu wire arround a graden hose, having 0.6m circumference. Then some 
> shrinking tube will be applied. That's the plan.
> The circuit looks easy, it should be run from a 9V battery and a 
> simple TL081 for example. The output could be adapted to a multimeter, 
> so there is a digital read-out.
> I'm curious to see how it works...
>
>
> 73, Stefan

Rogowski1.jpg
Description: JPEG image