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03443 DIFFERENTIAL ER-TECHNOLOGY FOR MEASURING DEGREE OF ACCUMULATED CORROSION AS WELL AS INSTANT CORROSION RATE

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Product Number: 51300-03443-SG
ISBN: 03443 2003 CP
Author: L.V. Nielsen, K.V. Nielsen
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A modification of traditional electrical resistance technology is demonstrated which leads to high resolution measurements that can be used to quantify instant corrosion rate in addition to accumulated degree of corrosion. Electrical circuitry, mathematical algorithms, and methods for temperature compensation are demonstrated. The applicability of the technique has been demonstrated in fields where electrochemical techniques are excluded. These include measurements under cathodic polarization and cathodic polarization combined with superimposed alternating currents (AC) as well as measurements of the degradation of electro-galvanized zinc surfaces exposed in salt spray test. Keywords: High-resolution ER-technology, corrosion rate monitoring, polarization curve, AC inducedpipeline corrosion, atmospheric corrosion, electro-deposited zinc.
A modification of traditional electrical resistance technology is demonstrated which leads to high resolution measurements that can be used to quantify instant corrosion rate in addition to accumulated degree of corrosion. Electrical circuitry, mathematical algorithms, and methods for temperature compensation are demonstrated. The applicability of the technique has been demonstrated in fields where electrochemical techniques are excluded. These include measurements under cathodic polarization and cathodic polarization combined with superimposed alternating currents (AC) as well as measurements of the degradation of electro-galvanized zinc surfaces exposed in salt spray test. Keywords: High-resolution ER-technology, corrosion rate monitoring, polarization curve, AC inducedpipeline corrosion, atmospheric corrosion, electro-deposited zinc.
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