Level gauge for liquid helium

Measuring and testing – Liquid level or depth gauge – Thermal type

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374176, 420901, 505 1, 505805, 505847, C22C 2800, J01F 2324, H01B 1200, G01K 700

Patent

active

049441833

ABSTRACT:
A level gauge and measurement method are provided using a sensing element comprising a superconductive alloy represented by the formula:

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patent: 4655079 (1987-04-01), Masumoto et al.
patent: 4745806 (1988-05-01), Masumoto et al.
patent: 4808488 (1989-02-01), Chevrel et al.
"Superconductivity in Amorphous Alloys", by Kinzoko, vol. 49 (12), 1979, pp. 24-32-Inoue, A. et al., (attached pp. 1-28).
"N.M.R. Study on .sup.31 P In An Amorphous Superconducting (MO.sub.0.5 Ru.sub.0.5).sub.80 P.sub.20 Alloy", D. A. Guerra et al., Solid States Communications-vol. 31, pp. 487-491, 1979.
"Pressure Dependence of the Superconductig Transition Temperature of a (Mo.sub.0.6 Ru.sub.0.4).sub.86 B.sub.14 Metallic Glass", FP. Missell et al., Solid State Communications, vol. 40, pp. 379-381, 1981.

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