Unitary self-referencing combined dual gas sensor

Abstract From the Canadian patent

22 53,290, ABSTRACT OF THE DISCLOSURE, A solid electrolyte dual gas sensor 10 is made containing a container body of a first solid electrolyte 11, in contact with a monitor electrode 17 exposed to a monitored gas environment 13 containing selected gas components to be measured, and in contact with a reference electrode 15 which is additionally isolated from the monitored gas environment by a second solid electrolyte 16 and optionally 14, where the second solid electrolyte at, the operating temperature of the gas sensor is effective, to dissociate to provide the sole source of self-generated gases at the reference electrode 15, corresponding to the selected gas components to be measured in …