Level measuring device

Details Level measuring device Level measuring device

1980-08-25

1983-01-18

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Fluent material level signalling

G01F 2300

Patent

active

043693687

ABSTRACT:
Device for measuring the surface level of a liquid in a vertically axed enclosure containing a radioactive fluid, the enclosure wall being able to receive deposits of radioactive corrosion products, which comprises N radiation sources located on the same vertical line in the vicinity of the enclosure wall, said sources being able to emit radiation traversing the enclosure; N' radiation detectors D.sub.i (N'>N) located successively at levels on a second vertical line contained in the plane defined by the first vertical line and said axis, said detectors being able to detect the radiation which has traversed the enclosure, each detector measuring the intensity of the radiation received; and means for processing said measurements and deducing therefrom the liquid surface level and/or the local density of the two-phase mixture, wherein it also comprises at least one supplementary detector positioned outside the area reached by the radiation emitter by the sources, said detector being able to measure the radiation due to the radioactivity of the fluid and said deposits.

REFERENCES:
patent: 3100841 (1963-08-01), Reider
patent: 3745338 (1973-07-01), Joyce

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