A method of prioritizing anomalies in a buried linear conductor

Details A method of prioritizing anomalies in a buried linear conductor A method of prioritizing anomalies in a buried linear conductor

G - Physics

01

R

G01R 31/08 (2006.01) G01V 3/08 (2006.01)

Patent

CA 2664577

A method of prioritizing anomalies in a linear conductor buried under a ground surface includes the steps of obtaining prioritization values for a plurality of anomalies along a linear conductor, and ranking the prioritization values according to magnitude. For each anomaly, a prioritization value is obtained by: locating an anomaly; for each anomaly, determining a current, a depth of cover, and a voltage gradient using spaced voltage probes; using the depth of cover and the voltage gradient, calculating an effective probe spacing of the first and second voltage probes relative to the anomaly on the conductor; and determining the prioritization value of the anomaly based on a linear relationship between the voltage gradient and the product of the current and the effective probe spacing.

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