Patent ID: 9290805
Filing Date: 2016-03-22
CPC Classification: C12Q,G01N,Y10T

Claim Text:
1. An electric circuit for applying a voltage while simultaneously measuring a current flowing between the common electrode and the cell electrode, the electric circuit comprising: a common electrode electrically to supply a common electric potential to an electrolyte in a liquid chamber; a cell electrode electrically to supply a variable electric potential, wherein the voltage between the common electrode and the cell electrode equals the variable electric potential minus the constant liquid electric potential, and wherein the liquid chamber is positioned above the cell electrode; and an integrator electronically coupled to the cell electrode, the integrator including an integrating capacitor, wherein a voltage across the integrating capacitor comprises a measure of the current flowing between the common electrode and the cell electrode during a measurement period, and the variable electric potential of the cell electrode is controlled by an applied voltage.