| 20090139876 | Apparatus and Method for Measuring Hydrogen Concentration - The subject invention pertains to an apparatus for measuring hydrogen concentration, wherein the apparatus comprises a sensor comprising a sensor wall enclosing a cavity containing a metal/hydrogen reference. A portion of the wall is formed of a proton-conducting solid electrolyte, connected to a reference electrode on its surface within the cavity and a measurement electrode on its surface outside the cavity. The apparatus comprises a hygroscopic material in the region of the sensor, to enable rehydration of the sensor following hydrogen concentration measurements. | 06-04-2009 |
