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PRCI PR-12-9314
- New Technique to Assess Level of Cathodic Protection in Underground Pipe Systems
- Report / Survey by Pipeline Research Council International, 02/29/1996
- Publisher: PRCI
$125.00$249.00
L51750e
Pennsylvania State University
Need: This report introduces the Variable Frequency Impedance Tomography (VFIT) method for assessing the effectiveness of non-interruptible power supplies (sacrificial anodes) for protecting coated buried pipe.
Benefit: This method imposes a low-amplitude alternating voltage between the pipe and a reference electrode placed on the surface. A potentiostat/galvanostat controls the electric potential by modulating the current between the pipe and a surface counter electrode. The principle interpretive tool used in this study was an Artificial Neural Network (ANN) that had been "trained" on simulated pipe with a defective coating and on field data from a test pipe.
Result: The method proposed in this report is non-intrusive, portable, easy to use, and relatively inexpensive.
Pennsylvania State University
Need: This report introduces the Variable Frequency Impedance Tomography (VFIT) method for assessing the effectiveness of non-interruptible power supplies (sacrificial anodes) for protecting coated buried pipe.
Benefit: This method imposes a low-amplitude alternating voltage between the pipe and a reference electrode placed on the surface. A potentiostat/galvanostat controls the electric potential by modulating the current between the pipe and a surface counter electrode. The principle interpretive tool used in this study was an Artificial Neural Network (ANN) that had been "trained" on simulated pipe with a defective coating and on field data from a test pipe.
Result: The method proposed in this report is non-intrusive, portable, easy to use, and relatively inexpensive.
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