Device for in-situ monitoring of corrosion rate of cathodically polarized metals
US4658365A · kind A · utility
22Cited by
5References
3Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 2, 1984 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Feb 2, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F13/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of monitoring the rate of corrosion of a cathodically protected system, comprising superimposing a sinusoidal voltage on a cathodic protection voltage imposed on a portion of the system, measuring an anodic dissolution current in response to the superimposed voltage, and calculating the corrosion rate from the anodic dissolution current at the cathodic protection voltage potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.