SYSTEMS, METHODS, AND APPARATUS FOR SUPERCONDUCTING MAGNETIC SHIELDING
First Claim
Patent Images
1. A magnetic shielding system comprising:
- a first shield ring formed by a closed superconducting current path of a material that is superconductive below a critical temperature;
a current control system that includes at least one electrical current source;
a first compensation coil formed by a conductive current path that is conductively coupled to the current control system; and
a first measurement device positioned to measure magnetic fields in a vicinity of the first shield ring, the first measurement device communicatively coupled to the current control system.
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Abstract
A localized area is at least partially contained within a perimeter of a shield ring formed by a closed superconducting current path of a material that is superconductive below a critical temperature. The shield ring is at least partially within a perimeter of a compensation coil that is coupled to a current source. One or more measurement devices are responsive to magnetic fields in the vicinity of the localized area, allowing compensation by controlling current to the compensation coil. A heater can raise temperature of the shield ring out of a superconducting condition.
66 Citations
25 Claims
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1. A magnetic shielding system comprising:
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a first shield ring formed by a closed superconducting current path of a material that is superconductive below a critical temperature; a current control system that includes at least one electrical current source; a first compensation coil formed by a conductive current path that is conductively coupled to the current control system; and a first measurement device positioned to measure magnetic fields in a vicinity of the first shield ring, the first measurement device communicatively coupled to the current control system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of controlling magnetic fields in a localized environment, the method comprising:
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at least partially forming a perimeter around the localized environment with at least one shield ring formed by a closed superconducting current path of a material that is superconductive below a critical temperature; measuring at least one magnetic field in at least one direction in a vicinity of the localized environment; controlling at least one current through at least one compensation coil to generate at least one compensatory magnetic field in the vicinity of the localized environment; refining the at least one current until the at least one magnetic field in the vicinity of the localized environment reaches a desired level; and trapping the at least one compensatory magnetic field with the at least one shield ring. - View Dependent Claims (22, 23, 24, 25)
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Specification