Sensor cable for electromagnetic surveying

Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports

Reexamination Certificate

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Reexamination Certificate

active

07999552

ABSTRACT:
A sensor cable for surveying. The sensor cable may comprise at least one pair of current sensor electrodes and an amplifier. The current sensor electrodes may be disposed along opposite sides of the sensor cable. The current sensor electrodes may be configured to detect current in an electromagnetic field transverse to an inline direction of the sensor cable. The amplifier may be configured to amplify the current in the electromagnetic field for detection by the electrode pair.

REFERENCES:
patent: 4617518 (1986-10-01), Srnka
patent: 6236211 (2001-05-01), Wynn
patent: 7002350 (2006-02-01), Barringer
patent: 7203599 (2007-04-01), Strack et al.
patent: 2006/0091889 (2006-05-01), Ellingsrud et al.
patent: 2005006022 (2005-01-01), None
Thompson, et al., Marine Geophysical Prospecting System, United States Statutory Invention Registration, Published Sep. 5, 1995, Registration No. H1490.

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