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Sometimes inductivity is not all you want to know.
* Inductivity in relation to DC current
* saturation
* ESR
* inductivity in relation of frequency
...
Ans: 1) Direct measurement with help of LCR Meter/ LC meter
2) Direct measurement with DC Current applied in LCR Meter
3) Indirect method : Apply AC voltage to inductor and measure voltage and current then calculate the inductance from impedance, Impedance = V/i
And because most LC meters have a poor or none selections speaking of test frequency range.
For testing up to 100KHz you can do that by not spending thousands of Euro for bench-top LCR but by using a handheld LCR as for example a DE5000.
But in case that you are a developer who need specific frequencies for applications as for example SMPS at 60KHz, or about testing QI pads at 145 KHz, them you need a bench top.
But in case that you are a developer who need specific frequencies for applications as for example SMPS at 60KHz, or about testing QI pads at 145 KHz, them you need a bench top.
Correct; but if you are going to test only a few, you can set up a simple one using a frequency generator and a scope. You can also set up a simple one like the physics class experiment on the B-H curve that will tell you a lot about the core material. You can use a rather simple set up to measure cores upto 1MHz frequency range.
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