What are typical inter-electrode capacitance values?
The capacitance values when the sensor contains air are referred to as “standing capacitances” and their relative values are shown in the figure below for a 12-electrode circular sensor with internal electrodes. Sequential electrodes (adjacent electrodes), have the largest standing capacitances (values for a typical sensor are around 200-500fF), while diagonally opposing electrodes (opposite electrodes) have the smallest capacitances (typically 10-20 fF).
