If your circuit has calibration or can zero out the lead resistance
Yes, it has two calibrations. For zeroing and second for fine tuning by using known accurate calibrating resistance of few ohms
should be looking at an LCR meter.
I have dedicated Capacitance meter up to 20000 µF
You may want to consider my other design:
Nope I did not know of it. But i know now
It looks very linear and again simple enough .
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That is the deal, folks .. The circuit is not good from 9 volt battery. When turned on it displays the usual (-1***) but after half of second the digits start go all over the place. After scoping found that the voltage is dropping to around 7 on the battery itself and 3.9 volts for the 5 volt digital stuffs. I have shunted the safety diode for additional 0.7 volts but it is not enough.
The drive signal is good, op amps are working nice.