Patent ID: 7384524
Filing Date: 2008-06-10
Classification: G01N

Abstract:
1. A carbon monoxide sensor comprising: a membrane electrode assembly for facilitating proton exchange comprising: an anode connected with the anode side for facilitating dissociation of hydrogen comprising: a first current collector for collecting current, wherein the first current collector has at least one exterior surface, and comprises a first plate for providing an electrical connection, wherein the first plate is electrically connected to the exterior surface of the first current collector; a cathode connected with the cathode side for receiving a current of electricity for delivery to the membrane electrode comprising: a second current collector for collecting current, wherein the second current collector has at least one exterior surface, and comprises a second plate for providing an electrical connection, wherein the second plate is electrically connected to the exterior surface of the second current collector; a sample gas source for supplying a sample gas stream to the anode side of the sensor; an air source for periodically refreshing the carbon monoxide sensor to an unpoisoned state by supplying air to the anode side of the sensor; an output configured to relate the inverse relationship between the closed-cell current of the sensor and the concentration of carbon monoxide (CO) present in the sample gas stream flowing through the anode side of the sensor;