SPECTRUM EXTERNAL LINE INSPECTION TECHNOLOGY INC. Patent applications |
Patent application number | Title | Published |
20120273603 | SPOOLING APPARATUS FOR SURVEY WIRE - A spooling apparatus includes a spool for holding wire, the spool having a wire-retaining section and end plates, the end plates having one or more apertures. A conductive plate is positioned on an end plate of the spool opposite the wire-retaining section, and at least one conductive extension that extends through a corresponding aperture of the end plate such that the conductive extension is adjacent to the wire retaining section. Wire is spooled onto the wire-retaining section, at least a portion of the wire being uninsulated and in electrical contact with the conductive extensions of the conductive plate. | 11-01-2012 |
20090281746 | METHOD OF PRIORITIZING ANOMALIES IN A BURIED LINEAR CONDUCTOR - 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. | 11-12-2009 |