Method and structure for compensating for variations in vapor co

Details Method and structure for compensating for variations in vapor co Method and structure for compensating for variations in vapor co

1981-06-22

1982-09-07

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Including superconductivity

307245, 307306, 323360, 335216, H01H 4700

Patent

active

043487106

ABSTRACT:
A superconducting magnet arrangement having a sealed cryogenic environment utilizing liquid helium, a superconducting coil immersed in the liquid helium, a constant current power supply exterior of the cryogenic environment and connected to the coil by leads cooled by varying helium boil off and an electrical shunt connect across the magnet. Variations in the helium boil off are compensated by exposing the shunt to and cooling it by the same helium boil off or by exposing negative temperature coefficient device to such flow or by a combination of such methods.

REFERENCES:
patent: 3129359 (1964-04-01), Kunzler
patent: 3187229 (1965-06-01), Kunzler
patent: 3187236 (1965-06-01), Leslie
patent: 3278808 (1966-10-01), Bonfeld
patent: 3502946 (1970-03-01), Kimura

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