Electricity: measuring and testing – Magnetic – Magnetometers
Patent
1976-03-19
1978-05-09
Corcoran, Robert J.
Electricity: measuring and testing
Magnetic
Magnetometers
G01R 3304
Patent
active
040889548
ABSTRACT:
The magnetometer transducer includes a group of plated magnetic wires arranged in parallel physically and connected in series electrically to serve as a drive circuit, and several turns of 0.025 mm diameter wire wound around the group of plated magnetic wires to serve as a sense coil. Each of the magnetic wires has a diameter of 0.05 mm with their centers being 0.25 mm apart. Because of its shape and small size, it is capable of very good spatial resolution of magnetic fields as low as 0.02 oe and it can make measurements of transverse magnetic fields as close as 0.08 mm from a surface. The magnetometer utilizes two X-Y recorders in a unique transducer scanning technique. One of the recorders moves the transducer over the specimen being measured and the other recorder records the measurements.
REFERENCES:
patent: 3319161 (1967-05-01), Beynon
patent: 3657641 (1972-04-01), Kardashian
Kan; G.; New Uses for Fluxgate Principle; Electronics Indus; Aug. 1960, pp. 107-110.
Oshima et al.; High Sensitivity Plated Wire etc.; IEEE Trans. on Mag.; Sep. 1971; pp. 436-437.
Stenger et al.; Magnetic Field Mapper; NASA Publication #SP-5907(03); p. 15; Dec. 16, 1974.
Fales et al.; A Magnetometer Instrumentation Technique etc.; Rev. of Scien. Inst.; vol. 45; #8; Aug. 1974; pp. 1009-1011.
Breckenridge Roger A.
Debnam, Jr. William J.
Fales, Jr. Carl L.
Fletcher James C. Administrator of the National Aeronautics and Space
Pohm Arthur V.
Corcoran Robert J.
King William H.
Manning John R.
Osborn Howard J.
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