Liquid sensor and the use thereof in controlling the corrosion o

Details Liquid sensor and the use thereof in controlling the corrosion o Liquid sensor and the use thereof in controlling the corrosion o

1983-01-24

1985-03-26

Kreitman, Stephen A.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

340604, 422 53, G01N 2700

Patent

active

045065403

ABSTRACT:
A liquid water sensor, useful for indicating a corrosive condition in a natural gas pipeline, comprises a plurality of electrically conductive members spaced from each other by an insulating medium and in series with an electrical continuity detector. The conductive members are spaced at a distance sufficient to enable a droplet or film of water to bridge such conductive members to provide a conductive pathway therebetween and thereby provide a signal at the continuity detector. An electrical circuit is also provided which includes a heater for heating the conductive members to evaporate liquid water therefrom and an output circuit for indicating whether liquid water was present or another conductive material having a boiling point greater than water, e.g. ferrous sulfide, continues to provide a conductive pathway between the conductive members after cessation of heating.

REFERENCES:
patent: 3166485 (1965-01-01), Lloyd
patent: 3599862 (1971-08-01), Hogan et al.
patent: 3793586 (1972-02-01), Heeps
patent: 3914982 (1975-10-01), Zanetti
patent: 3996124 (1976-12-01), Eaton et al.
patent: 4356834 (1982-11-01), Lemay
patent: 4373392 (1983-02-01), Nagamoto

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