Method and apparatus for determining whether a fluid is leaking

Details Method and apparatus for determining whether a fluid is leaking Method and apparatus for determining whether a fluid is leaking

1979-07-26

1981-04-07

Goldberg, Gerald

Measuring and testing

With fluid pressure

Leakage

73 15R, G01M 300

Patent

active

042598613

ABSTRACT:
An electrically conductive metal is arranged within a passage for sodium having leaked, and the temperature change of the electrically conductive metal attributed to the heat of vaporization of which the sodium mist deprives the electrically conductive metal upon contact with the latter and subsequent vaporization is detected. The temperature change of the electrically conductive metal is detected in the form of a change in the current or voltage conducting property, and current corresponding to the temperature change is fed back to the electrically conductive metal. The change of the conducting property is taken out as a pulse signal, and a value proportional to the weight of a sodium mist particle is detected from the magnitude of the signal. Further, a value proportional to the weight of the whole mist is detected by the pulse height analysis. The leakage of the sodium is decided by comparing the value of the weight of the whole mist with a predetermined value. The sodium leakage may well be decided by comparing the number of the pulse signals with another predetermined value.

REFERENCES:
patent: 3874222 (1975-04-01), Ladd et al.
patent: 3938544 (1976-02-01), Bernaerts
patent: 4041771 (1977-08-01), Allan et al.

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