Hi,
I wanna to measure capacitance of a piece of wire inside some steel made system with respect to ground using LCR metre with 100KHz frequency.
Using this meter I am getting anomalous results each time. from zero to negative capacitance. Could any one of you guide me in this respect?

 

Hi,
I wanna to measure stray capacitance around my some steel made system with respect to ground using LCR metre with 100KHz frequency.
Using this meter I am getting anomalous results each time. from zero to negative capacitance. Could any one of you guide me in this respect?

The rage of your LCR metre may not be enough.

 

The rage of your LCR metre may not be enough.

Then what are requirements to measue a capacitance of a wire in such a systme?

 

Stray capacitance is usually a residual effect that creates an error in a reading when measuring capacitance from a capacitor. If the stray capacitance is large enough to worry about in normal operation a tipical LCR meter will measure it.
An AC excitation is necessary for sensing capacitance variations in stray capacitance.
If your stray capacitance is minor you may need a more sophisticated lab equipment that regular test equipment.