Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – Superconductor next to superconductor
Patent
1992-10-02
1994-12-27
Larkins, William D.
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
Superconductor next to superconductor
505150, 505701, 505778, 505780, 505782, 505783, 505860, 338 32S, 335216, 327370, 327527, H01L 3900, H01L 3916, H03K 1792, H03K 338
Patent
active
053766261
ABSTRACT:
A superconducting switch is composed of anisotropic magnetic material. The switch has a first superconducting section, a variable resistive section and a second superconducting section. An external magnetic field is applied so that the first and second superconducting sections remain superconducting and the resistive section changes resistance when the magnetic field applied exceeds the critical field of the variable resistance section. The different critical field regions are achieved by exploiting the natural critical field anisotropy of the ceramic superconductors (a previously unobserved phenomena in metal superconductors). By making the different sections with different orientations they will exhibit different critical field valves for a given direction of applied fields. The state of the switch is changed by either increasing or decreasing the external magnetic field about the critical field value of the resistive section of the switch. The first superconducting section is connected to the resistive section and the resistive section is connected to the second superconducting section to form a switch circuit. The change in the current flowing through the switch indicates the state of the switch.
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Bachowski Stephen
Drehman Alvin J.
Collier Stanton E.
Larkins William D.
Singer Donald J.
Tang Alice W.
The United States of America as represented by the Secretary of
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