Liquid helium level indicating gauge

Details Liquid helium level indicating gauge Liquid helium level indicating gauge

1983-07-29

1986-01-28

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Thermal type

338 22SD, G01F 2324

Patent

active

045663238

ABSTRACT:
Improved liquid helium level gauge is described. The gauge includes a resistance wire sustained vertically within a liquid helium container and an electrical indicating device for producing an indication which varies with the electric resistance of said resistance wire. The resistance wire is made of a new superconductive amorphous material such as Zr.sub.80 Nb.sub.5 Al.sub.8 Si.sub.7. The amorphous material has a superconductivity transition temperature between 4.2.degree. and 5.0.degree. K., a relatively high normal electric resistance and a high mechanical strength.

REFERENCES:
patent: 3267730 (1966-08-01), Satterthwaite et al.
patent: 3496773 (1970-02-01), Comish
patent: 3856513 (1974-12-01), Chen et al.
patent: 3943767 (1976-03-01), Efferson
patent: 4208911 (1980-06-01), Tcherner
patent: 4407561 (1983-10-01), Wysocki

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