So from the value Cp measured on the meter, how can we extract the actual capacitance assuming we know the area and thickness ]]>

I use the HM8118 (from Rohde & Schwarz) It has a basic accuracy of 0.05%, and in addition to measuring the resistance, inductance and capacitance of passive components, it measures the nonideal characteristics of real components, such as series equivalent resistance (Rs) and parallel equivalent resistance, (Rp) of capacitors and inductors (very important). It also calculates derived parameters, such as the quality factor Q, the dissipation factor D, the phase angle Theta, as well as the complex values of the impedance Z and the admittance Y.

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