Inductor Shunt Capacitance...


by dnyberg2
Tags: capacitance, inductor, shunt
dnyberg2
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#1
Dec14-12, 02:44 PM
P: 66
I know that the there is some small capacitance between the windings of an axial inductor lets say, but how does one measure this? The inductor is a short on an LCR meter...
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berkeman
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#2
Dec14-12, 04:02 PM
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Quote Quote by dnyberg2 View Post
I know that the there is some small capacitance between the windings of an axial inductor lets 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.
Enthalpy
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#3
Dec14-12, 08:03 PM
P: 660
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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