Instructables

Make a Rogowski coil

Picture of Make a Rogowski coil
right-hand-rule.jpg
What does a rogowski coil do? A rogowski coil is a usefull method of measuring the current that passes through a conductor, AC power or pulse power. A rogowski coil is a kind of current transformer, depending on the current passing through the center, the voltage output varies. This gives you usefull information on the current patterns, and if calibrated, how much current.

Electricity and magnetism are interchangable. All currents create magnetic fields. If you are looking head on to a wire, the field flows right, know as the right hand rule. Now, these magnetic field rings induce a voltage in the coil wrapped around, creating a voltage.

My coil and more info: http://rp181.110mb.com/index.php?p=1_27'''''
 
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Step 1: Parts

1) Thin guage wire, I used 30 AWG wire. Magnet is best, but i did not use magnet.
2)a coax cable that can be cut
3) a connecting coax cable
4)a microphone cord that can be cut
5) a satelite cable splitter (optional)
6).1uf ceramic capacitor
7)several million ogm resistor (You need to expierement to find a correct value)
8)Solder
9)Tape, or a better alternative, heatshrink
10) A laptop loaded with winscope and audacity
11) A capacitor to test the coil, I used a 400v 3900uf cap charged to 150volts.

My coil and more info: http://rp181.110mb.com/index.php?p=1_27'''''
Since its aircored, how come you get saturation ?
NachoMahma5 years ago
. Good job. A schematic and a little more theory would be nice.
can do =) more theory incoming.
. Thank you! That makes it much clearer.