Magnetic field transfer device and method
A magnetic field transfer device includes a pair of oppositely wound inner coils which each include at least one winding around an inner coil axis, and an outer coil which includes at least one winding around an outer coil axis. The windings may be formed of superconductors. The axes of the two inner coils are parallel and laterally spaced from each other so that the inner coils are positioned in side-by-side relation. The outer coil is outwardly positioned from the inner coils and rotatable relative to the inner coils about a rotational axis substantially perpendicular to the inner coil axes to generate a hypothetical surface which substantially encloses the inner coils. The outer coil rotates relative to the inner coils between a first position in which the outer coil axis is substantially parallel to the inner coil axes and the outer coil augments the magnetic field formed in one of the inner coils, and a second position 180[degree] from the first position, in which the augmented magnetic field is transferred into the other inner coil and reoriented 180[degree] from the original magnetic field. The magnetic field transfer device allows a magnetic field to be transferred between volumes with negligible work being required to rotate the outer coil with respect to the inner coils. 16 figs.
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- Astronautics Corp. of America, Milwaukee, WI (United States)
- Patent Number(s):
- US 4901047; A
- Application Number:
- PPN: US 7-307365
- OSTI ID:
- 7165584
- Resource Relation:
- Patent File Date: 6 Feb 1989
- Country of Publication:
- United States
- Language:
- English
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