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Study on an On-line Measurement System of Corrosion Rate by Linear Polarization Resistance
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  • Journal title : Corrosion Science and Technology
  • Volume 11, Issue 4,  2012, pp.135-140
  • Publisher : The Corrosion Science Society of Korea
  • DOI : 10.14773/cst.2012.11.4.135
 Title & Authors
Study on an On-line Measurement System of Corrosion Rate by Linear Polarization Resistance
Moon, Jeon Soo; Lee, Jae Kun; Lee, Jae Bong; Park, Pyl Yang;
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 Abstract
The linear polarization resistance method is one of the widely used techniques for the corrosion rate monitoring in the water circulating systems of plants. The measurement is simple and rapid, so that a continuous on-line monitoring is possible without any shutdown of plants. A 2-electrode polarization corrosion rate measurement system was installed in a laboratory using a data acquisition board and PC. The signal processing parameters were optimized for the accurate corrosion rate measurement, and the polarization resistance was compensated with the solution resistance measured by the high frequency sine wave signal of an output channel. The precision of corrosion rate data was greatly improved by removing the initial noise signals on measuring the polarization resistance.
 Keywords
corrosion rate;linear polarization resistance;solution resistance;Stearn-Geary equation;data acquisition board;
 Language
Korean
 Cited by
1.
The Corrosion Inhibition Characteristics of Sodium Nitrite Using an On-line Corrosion Rate Measurement System, Corrosion Science and Technology, 2015, 14, 2, 85  crossref(new windwow)
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