...now i started to build one, see attachment.

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
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