Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Superconductive type
Patent
1991-12-30
1992-12-01
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Superconductive type
336DIG1, 323360, 505705, 505880, 505870, 505 1, H01F 722, H01F 3600
Patent
active
051682591
ABSTRACT:
A superconducting coil is disclosed. A plurality of coils made of oxide superconducting materials are formed on the respective surfaces of substrates, and the adjacent coils mounted on the substrates are connected by conductors to form one coil. Since the coil consists mainly of oxide superconductor, liquid nitrogen can be used to cool at a temperature less than Tc the coil which is energized in order to generate a magnetic field. Therefore it costs less to generate a magnetic field by the coil than by the conventional coils made of metallic superconductors. In addition, the coil is mechanically strong.
REFERENCES:
patent: 3333331 (1967-08-01), Swartz
patent: 4629707 (1985-12-01), Wolfe
patent: 4794894 (1989-01-01), Gill
patent: 4806040 (1989-02-01), Gill et al.
patent: 4848286 (1989-07-01), Bentz
patent: 4970483 (1990-11-01), Wicker et al.
Ledynh Bot L.
Picard Leo P.
Semiconductor Energy Laboratory Co,. Ltd.
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