Know your inductor with only a pulse | Inductance meter with Oscilloscope | LC Tank Resonance Wave

[@mrinmoybanik5598]

I can only see a continuous falling exponential without any wave! I'm using a DHO804 though! and a 100uH inductor. Where am I going wrong?

[@odissey2]

The only problem is to find the exact value of the 1n capacitor (plus all parasitic capacitances of the probe)

[@ProDroneControl]

true!

[@odissey2]

@@ProDroneControl I will try to reproduce your experiments with LC tank to see if there is a potential for an L meter using microcontroller.

[@ProDroneControl]

@@odissey2 that's quite possible. Ages ago, i did that with atmega328. All you need to do is make a frequency counter using uC. I used bare minimum code with OP codes to directly access timers and reduce code latency. Once frequency is measured, we use lc tank formula to get back inductor value. It was pretty accurate in nH to mH range.. in uHenry range, all parasitic components play nasty role nd measurements get weird.