Relating to the cathodic protection of structures

Details Relating to the cathodic protection of structures Relating to the cathodic protection of structures

1977-01-07

1978-03-14

Blix, Trygve M.

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Steering mechanism

Remote control steering excluding manual operation

114244, 324 52, 324 72, 340 4E, G01R 3102, B63H 2500

Patent

active

040785106

ABSTRACT:
A method of surveying a cathodically protected metallic structure at least partly immersed in a liquid, such as an undersea pipeline which has sacrificial anodes attached at regular intervals along its length. The anodes provide a known electrolytic potential relative to the surrounding water. The potential differences in the water between a point adjacent an anode, and test points adjacent the pipeline are measured, and the varying level of protection along the pipe is determined from the variations between the measured potential differences.

REFERENCES:
patent: 3526831 (1970-09-01), Smith

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