SENSOR FOR MEASURING OXYGEN CONTAINING MELT LICL-LI2O-LI AND ATMOSPHERE ABOVE MELT Russian patent published in 2020 - IPC G01N27/26 G01N27/406 G01N27/411 

FIELD: nuclear physics and equipment; analytical equipment.

SUBSTANCE: invention relates to analytical equipment and can be used in processing of oxide nuclear fuel mainly in closed nuclear fuel cycle. Sensor comprises a test tube from a solid electrolyte, a reference electrode, a current collector from a reference electrode, a current collector for removing oxygen potential from the analyzed melt, serving as a measuring electrode, a protective cover, wherein the reference electrode is made from a mixture of Me + Me_xO_y protective cover is formed as a further tube of solid electrolyte of the same composition as that of the main tube, wherein both test tubes are tightly connected to each other to form a cavity between them, in which there is a salt of LiCl composition, wherein the main test tube is equipped with an electrode for measuring content of oxygen in the atmosphere above the melt and current collector for removal of oxygen potential of melt, which is made of nickel wire, placed in ceramic tube.

EFFECT: technical result consists in the possibility of measuring the oxygen containing melt LiCl-Li₂O-Li and the gaseous phase above it during electrolytic processing of spent nuclear fuel.

1 cl, 1 dwg