Local electrochemical impedance spectroscopy (LEIS) for detecting coating defects in buried pipelines

Local electrochemical impedance spectroscopy (LEIS) for detecting coating defects in buried pipelines

A system and associated methods for acquiring and analyzing LEIS data from a buried structure, such as a pipeline. A special probe having adjustable electrodes is placed in the soil above the structure. A voltage is applied to the structure, causing more current to emanate from a coating defect than...

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Hauptverfasser: Shukla, Pavan K, Mintz, Todd S, Dasgupta, Biswajit, Fisher, Jay L, Pensado-Rodriguez, Osvaldo
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creator Shukla, Pavan K
Mintz, Todd S
Dasgupta, Biswajit
Fisher, Jay L
Pensado-Rodriguez, Osvaldo
description A system and associated methods for acquiring and analyzing LEIS data from a buried structure, such as a pipeline. A special probe having adjustable electrodes is placed in the soil above the structure. A voltage is applied to the structure, causing more current to emanate from a coating defect than from intact coating. The probe electrodes acquire a response signal, which is analyzed to detect the defect.
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title Local electrochemical impedance spectroscopy (LEIS) for detecting coating defects in buried pipelines
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