SOLID ELECTROLYTE SENSOR FOR MEASUREMENT OF OXYGEN CONCENTRATION IN GASES AND MOLTEN METALS Russian patent published in 2013 - IPC G01N27/406 

FIELD: measurement equipment.

SUBSTANCE: solid electrolyte sensor for measurement of oxygen concentration in gases and molten metals includes a solid electrolyte made in the form of a test glass, a reference electrode, an internal current collector from the reference electrode, a protective cover that is equipped with a contact ring and serves as an external current collector. According to the invention, the sensor is equipped with an additional measuring electrode with a current collector; the electrode is located in middle part of outside surface of the solid electrolyte glass, and the protective cover has through openings for passage of analysed gas to the measuring electrode surface.

EFFECT: invention provides the possibility of performing measurements both of oxidation of molten metal and oxygen content of gas phase above molten metal; simpler design of the sensor and higher measurement accuracy.

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