How can I measure the shunt capacitance of an inductor?

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To measure the shunt capacitance of an inductor, an LCR meter can be used to assess the inductor's characteristics, as it should measure inductance, capacitance, and resistance accurately. If the inductor appears as a short on the meter, it may indicate an issue with the measurement setup or the meter itself. A Digital Multimeter (DMM) combined with a Vector Impedance Meter can also be effective, especially by increasing the frequency until the inductor exhibits capacitive behavior. The capacitance can then be deduced from the frequency at which this transition occurs, assuming the inductance remains stable. Accurate measurement requires careful consideration of the equipment and the inductor's properties.
dnyberg2
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I know that the there is some small capacitance between the windings of an axial inductor let's say, but how does one measure this? The inductor is a short on an LCR meter...
 
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dnyberg2 said:
I know that the there is some small capacitance between the windings of an axial inductor let's say, but how does one measure this? The inductor is a short on an LCR meter...

An inductor is not a short on an LCR meter. If the meter is any good, it should be able to measure all 3 quantities for a real-world inductor. What meter are you using, and what value of inductor are you trying to measure?

You can also use a DMM + Vector Impedance Meter to characterize the inductor's LCR values.
 
Increase the frequency until the coil is capacitive. From the frequency where the behaviour changes, you can deduce the capacitance - provided the inductance stays constant, far from granted.
 

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