NEW OPERATIONAL MODES FOR THE TA2O5-BASED ELECTROLYTE CONDUCTANCE CELL

Based on the recently presented conductance cell, two specific operati onal modes are proposed. In the oscillator mode, the conductivity of t he electrolyte determines the frequency of an oscillator, experimental ly obtaining a shift from 10 to 27 kHz for a KCl concentration range f rom 0.5 to 100 mM. In the pole mode, an inductor is placed in series w ith the cell, giving the real electrolyte resistance at the resonance frequency of the circuit, resulting in a linear relation between the l og of the output voltage from 4 to 1000 mV as a function of the log of the KCl concentration, ranging from 0.2 to 100 mM.