Patent ID: 9696275
Date: 2017-07-04
CPC Classifications: G01N

Claim:
1. A method for measuring a signal corresponding to a characteristic of a fluid using an electrode array, the electrode array comprising (1) a first working electrode, wherein the first working electrode is located in a first compartment that contains the fluid and is in contact with the fluid, (2) a first reference electrode, wherein the first reference electrode is located in the first compartment and is in contact with the fluid but not the first working electrode, (3) a second working electrode, wherein the second working electrode is located in a second compartment that contains the fluid and is in contact with the fluid, and (4) a second reference electrode, wherein the second reference electrode is located in the second compartment and is in contact with the fluid but not the second working electrode, the method comprising: enabling the first working electrode of the electrode array by controlling a first voltage potential relationship between the enabled first working electrode and the first reference electrode, while the first working electrode is enabled, disabling the second working electrode of the electrode array by controlling a second voltage potential relationship between the disabled second working electrode and the second reference electrode; and measuring a signal produced by the enabled first working electrode while the second working electrode is disabled, the measured signal corresponding to a characteristic of the fluid in the first compartment.