GEAR FOR ELECTROCHEMICAL CLEANING OF SENSITIVE ELEMENT OF pH ELECTRODE Russian patent published in 2003 - IPC

FIELD: measurement of pH solutions utilized in various chemical technologies, polishing of metal articles. SUBSTANCE: technical result of invention lies in increased speed of emergence of electrode potential jump, in raised sensitivity and serviceability of pH electrode in media containing suspensions or precipitation and various oxides, for instance iron oxide. With this in mind it would be necessary to keep initial oxidation of working surface of sensitive element of pH electrode as if it was formed by mechanical polishing. Proposed gear includes two bearings, two cylinders and mechanism for rotation around is axis under action of liquid flow made in the form of impeller positioned on outside of cylinders. Inlet and outlet holes for penetration of solution-electrolyte into polishing zone are provided in cylinders. EFFECT: increased speed of emergence of electrode potential jump. 1 cl, 2 dwg