Variables	Meaning	Unit	Greek	Meaning	Unit
a	Half gap distance	[m]	ε	Permittivity	[F/m]
C	Capacitance	[F]	Subscripts
h	Height	[m]	0	Reference	-
I	Current	[A]	eff	Effective	-
l	Length of the	[m]	o	Olive oil	-
n	Number of finger	-	w	Water	-
Q	Volumetric flow rate	[mL/min]
R	Resistor	[Ω]
T	Penetration depth	[m]
V	Voltage	[V]
w	Finger width	[m]