Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1977-02-02
1979-01-09
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 3, 324 52, 324 71R, G01R 1914, G01R 3108, G01N 2700
Patent
active
041340612
ABSTRACT:
Apparatus for measurement, above the surface of the ground, of an electrical current flowing in a buried pipeline, comprises a pair of magnetic flux detectors oriented with their axes vertical, and spaced apart, in a frame, which is moved along the earth at a substantially constant elevation above the surface, with the plane through the two vertical detectors substantially perpendicular to the direction of the pipe. Means are provided, including a vertical core and coil centered on the frame, for indicating the position of the frame laterally with respect to the buried pipe. There is also a second core and coil displaced laterally from the first core and coil, for determining the depth of the pipe below the frame. When the frame is centered over the pipe and there is current in the pipe, flux will pass upwardly through a first flux detector core and downwardly through the second flux detector core. One or a plurality of coils and suitable measuring instruments can determine the magnitude of the flux through the core and therefore, the magnitude and direction of the current flowing in the pipe.
REFERENCES:
patent: 1297929 (1919-03-01), Taylor
patent: 2382743 (1945-08-01), Penther et al.
patent: 2501598 (1950-03-01), Eltenton et al.
patent: 3305711 (1967-02-01), Quittner
patent: 3526831 (1970-09-01), Smith
patent: 3617865 (1971-11-01), Hakata
patent: 3745452 (1973-07-01), Osburn et al.
patent: 3836848 (1974-09-01), Blevins
patent: 3889179 (1975-06-01), Cutler
patent: 3907136 (1975-09-01), Christides et al.
patent: 3988663 (1976-10-01), Slough et al.
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