Method and apparatus for electromagnetically surveying a remote

Details Method and apparatus for electromagnetically surveying a remote Method and apparatus for electromagnetically surveying a remote

1984-02-14

1987-06-09

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

324 67, G01V 311

Patent

active

046723218

ABSTRACT:
Apparatus for locating or monitoring the condition of an inaccessible conductor comprises an antenna for receiving electrical signals due to an alternating current in the conductor. The antenna comprises at least two transducer assemblies each comprising two horizontal, preferably mutually perpendicular, transducers (preferably ferrite-cored coils). The signals induced in the transudcers can be processed to give information about the current in the conductor (indicative of its condition) or its depth, independently of the antenna orientation. Use of more assemblies can give better sensitivity. Assemblies including a vertical transducer can avoid the need for the antenna to be over the conductor.

REFERENCES:
patent: 3187252 (1965-06-01), Hungerford
patent: 3617065 (1971-11-01), Hakata
patent: 3893025 (1975-07-01), Humphreys, Jr.
patent: 3988663 (1976-10-01), Slough et al.
patent: 4112349 (1978-09-01), Weber
patent: 4130791 (1978-12-01), Slough et al.
patent: 4134061 (1979-01-01), Gudgel
patent: 4295095 (1981-10-01), Thomas et al.
patent: 4325026 (1982-04-01), Cooper, Jr. et al.
patent: 4387340 (1983-06-01), Peterman
patent: 4427942 (1984-01-01), Sole
Edwards, "The C-Span Pipeline Survey System-A New Approach to Coating Surveys on Buried Pipelines", Anti-Corrosion, Oct. 1986, pp. 6, 7 and 10.
"C-Scan Operator's Manual", Dynalog Electronics Limited, Sep. 1984.

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