Electrode system for monitoring corrosion

Details Electrode system for monitoring corrosion Electrode system for monitoring corrosion

1996-03-26

1998-08-18

Nguyen, Nam

Electrolysis: processes, compositions used therein, and methods

Electrolytic analysis or testing

For corrosion

205777, 324 712, 204404, G01N 2726

Patent

active

057954615

ABSTRACT:
An electrode system for monitoring potentials between electrodes that includes a structure having a surface, a first electrode, a second electrode, an electrolyte, and a monitor to measure the potentials between the first and second electrodes. The first electrode is connected to the surface of the structure. The second electrode and surface of the structure are each in direct physical contact with the electrolyte so that a potential exists between the first and second electrodes. In certain embodiments, the electrode system may further include a reference electrode that is in physical contact with the electrolyte and physically isolated from the first and second electrodes so that a potential exists between the reference, first, and second electrodes. Optionally, the electrode system further includes an apparatus for measuring a background change in the potentials between electrodes and compensating for this background change. The present invention also provides a method of monitoring corrosion of the surface of a structure by monitoring potentials between electrodes.

REFERENCES:
patent: 4755267 (1988-07-01), Saunders
patent: 4806850 (1989-02-01), Saumade et al.
patent: 5529668 (1996-06-01), Hall
patent: 5609740 (1997-03-01), Hasegawa et al.
J. O'M. Bockris, "Modern Electrochemistry-vol. 2", Plenum/Rosetta (1973), pp. 1269-1273.

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