Method and Apparatus of Implementing a Magnetic Shield Flux Sweeper

Sadleir, John E [Inventor]

关键词: SUPERCONDUCTIVITY;    TRANSITION TEMPERATURE;    MAGNETIC FIELDS;    PROXIMITY EFFECT (ELECTRICITY);    MAGNETIC FLUX;    MAGNETIC SHIELDING;    METALS;    DEMAGNETIZATION;    PATENTS;    CYLINDRICAL BODIES;   

RP-ID  :  US-Patent-9,913,414, US-Patent-Appl-SN-14/846,498

学科分类：物理（综合）

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

The present invention relates to a method and apparatus of protecting magnetically sensitive devices with a shield, including: a non-superconducting metal or lower transition temperature (T.sub.c) material compared to a higher transition temperature material, disposed in a magnetic field; means for creating a spatially varying order parameter's |.PSI.(r,T)|.sup.2 in a non-superconducting metal or a lower transition temperature material; wherein a spatially varying order parameter is created by a proximity effect, such that the non-superconducting metal or the lower transition temperature material becomes superconductive as a temperature is lowered, creating a flux-free Meissner state at a center thereof, in order to sweep magnetic flux lines to the periphery.