https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.6 2026-03-19T10:41:57.720Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/instruments/feed45ef-ac50-4a63-bd94-1a8f2affaba6 OXYGEN ANALYZERS Date=2021-08-05 User Id=sritz Entity=AltLabel Operation=INSERT System Note=insert AltLabel New Value=id: null category: primary text: OXYGEN ANALYZERS language code: en The Oxygen analyzer employs a ceramic zirconium oxide reactioncell, which develops a voltage between surfaces exposed todifferent concentrations of oxygen. Ambient air is routed to theinterior of the cell, with the sample stream routed to theexterior of the cell. When the sample stream oxygen content is20.9%, the concentration normally found in air, the cell outputvoltage is zero. As the oxygen content in the sample streamdrops, the zirconium oxide cell will sense the difference inoxygen concentration between the sample and the ambient air, andgenerate a voltage that can be made proportional to the oxygencontent of the sample stream.[Summary provided by Rutgers University] 2021-08-05 16:29:24.0