I am doing a research to measure the impedance of liquids. The model of the system is a resistor around 5 ohms, series with parallel RC, with low R around 100 ohm and high C value, around 30 uF. I think the frequency of interest is lower than 1kHz for my experiment.
Can the evaluation board measure the impedances (preferably not using external clock)?
If I have to provide external clock, how important is the stability of the clock to the measurement?