Page 304 - Gas Adsorption Equilibria
P. 304
290 Chapter 6
Figure 6.1. Installation for measurements of the static or frequency dependent dielectric
permittivity of gas adsorption systems. © IFT University of Siegen, 1988.
Assuming a small constant electric voltage (U) to be applied to the
plates of the capacitor producing a weak electric field (E < 1 V/m), the
static capacitance of the system can be determined by the relation
with
being the total charge on either of the plates of the capacitor which is the time
integral of the electric current (I (t)) in the wires connecting the capacitor to
an electric power source inside the impedance analyzer.
