Hi Everyone, as my question is related I thought I wont start another thread.
I want to ask a question on this subject (disclaimer: 1st time researching on this subject). Most (all) capacitor data sheets specify their values at a test frequency of 100Khz. Most LCR meters via posts on this site use just one frequency much lower the 100k, and I assume thats because it mostly makes the hardware required cheaper? Others use 2 or 3 different frequencies like the LCR meter from Elektor, and I’m assuming the different frequency selection is for the flexibility of testing a larger range of capacitors?
Can someone who has done this sort of thing explain some background theory on this, ie why use several frequencies, how does that affect the amplitude to the measured voltage across the capacitor, and range of components under test, and anything else of interest. I’ve simulated this on LTspice and examined the results, and am getting closer to a cct I can use for experimenting.
Thanks
kvresto