Apparatus for measuring weak static magnetic field using superco

Details Apparatus for measuring weak static magnetic field using superco Apparatus for measuring weak static magnetic field using superco

1991-09-19

1993-02-02

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Magnetometers

505845, G01R 3302, G01R 33035

Patent

active

051840723

ABSTRACT:
A magnetic field measurement system including a pick-up coil is not moved but fixed. Strips of superconducting material are arranged in a plane with narrow slits between the strips. The strips are moved very near the pick-up coil along the plane. From output variations of a SQUID magnetometer during the movement, a magnitude of a static field perpendicular to the plane of the strips is obtained.

REFERENCES:
patent: 3077538 (1963-02-01), Franzen
"The Use of Superconducting Shields for Generating Ultra-Low Magnetic Field Regions and Several Related Experiments," Chapter 4 Blas CABRERA: PH. D. Thesis, Stanford University (1975) pp. 84-117.
"Measurement of Absolute Intensity of Weak Magnetic Field Using Rf Biased SQUID" Cryogenics, vol. 20, No. 4, 1980 pp. 223-229.

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