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Re: LF: Rogowski-coils for RF measurements

To: rsgb_lf_group <[email protected]>
Subject: Re: LF: Rogowski-coils for RF measurements
From: Warren Ziegler <[email protected]>
Date: Mon, 22 Oct 2018 09:28:55 -0400
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Stefan,
   See John Andrew's web page :

73 Warren


On Mon, Oct 22, 2018 at 9:20 AM DK7FC <[email protected]> wrote:
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



--
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1

 
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