BICAMERAL COPPER-SULFATE NONPOLARISABLE REFERENCE ELECTRODE Russian patent published in 2008 - IPC C23F13/00 G01N27/30 

FIELD: metallurgy, coating.

SUBSTANCE: invention concerns protection from corrosion underground metal constructions and can be used for instrumentation of summary and polarisation potentials, for instance for piping. Electrode contains current non-conducting body with electrolytic chamber with built in it copper deep stream with signal track and potential sensor installed on body, at that electrolytic chamber body is filled by electrolyte consisting of distilled water, copper sulfate and ethylene glycol, ceramic porous diaphragm and ion-exchange membrane, at that current non-conducting body is additionallt outfitted by bentonitic chamber filled by bentonitic clay, soaked in water, and installed in it bottom part with ability of chambers' jointing, at that in point of chambers' jointing there are installed plastic stabilisation disk, ion-exchanger membrane and plastic disk with forced in it ceramic porous diaphragm, and in bottom part on the body of bentonitic chamber it is installed plastic disk with forced in it ceramic porous diaphragm, which is implemented with ability of electrolytic contact providing of electrode with ground.

EFFECT: service life increasing of reference electrodes and stability of itself potential, expansion of usage area with different chemical composition and moisture.

1 dwg, 1 ex