Non inductive resistor

[astouffer]

Now that the issue is settled, on to magnetic vs non magnetic resistor leads.

 

[lndm]

Don't know what the origin of the expression was but it loosely means
"Try it and see what happens".

Thanks rpapps, I may need to watch my slang

 

[Jennice]

Now that the issue is settled, on to magnetic vs non magnetic resistor leads.

Now, how could that be an issue!?

I'm seriously hoping you're kiddin'

Jennice

 

[poobah]

1) Place the resistor in question in series with a cap of known value. The cap should of be minimal inductance construction like a stacked film type.

2) Using a signal generator, find the resonant frequency of this circuit, it may be easier to measure 2 frequencies at points on either side of the resonant peak... at magnitudes some 80-90% of the peak. Then use the geometric mean to obtain the frequency.

3) Changing NOTHING in the circuit... remove the resistor and replace it with an equivalent length of wire. Again, find the resonant frequency.

4) From both circuits calculate the L. The diiference in apparent L's will be the L of the resistor.

None of this is super easy BTW... The more difficult it is... the less inductance you are apt to find.

A proper bridge is the right way to do this...

Data sheet is the cheap way.