Cathodic protection reference cell and corrosion sensor

Details Cathodic protection reference cell and corrosion sensor Cathodic protection reference cell and corrosion sensor

1995-08-08

1998-01-27

Regan, Maura K.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

324425, 324450, 324700, 324 72, 204404, 422 53, G01R 2720, G01N 2728, G01N 2742

Patent

active

057125597

ABSTRACT:
A combination and unitary corrosion monitor and reference cell for cathodic protection systems includes an elongated tubular metal element of the same material as the structure to be protected and a reference cell on one end of the tubular element, adapted to be buried or submerged in an electrolyte. The tubular element includes resistance connections along its length and a reference resistance element sealed inside. Ratiometric resistance measurements enable the extent of corrosion and corrosion rates to be determined with automatic compensation for temperature changes. Both the resistance measurements and the potential measurements from the cell may be taken from the same test station or location.

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Rohrback Cosasco Systems, Inc., Bulletin #200-B, "Corrosometer.RTM. Probe Selection Guide", Date Unavailable.

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