Method and apparatus for the detection of stagnant regions in a

Electricity: measuring and testing – A material property using electrostatic phenomenon – Frictionally induced

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G01R 528

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active

042753538

ABSTRACT:
A probe electrode is mounted across the wall of a fluidized bed column or solid particles feed thereto, and an air gap between the probe electrode and a neon lamp causes lamp flashes when the particles are normally circulating and allows the detection of stagnancy of the particles in absence of light flashes.

REFERENCES:
patent: 3141131 (1964-07-01), McCog
patent: 3636763 (1972-01-01), Beck
patent: 3679973 (1972-07-01), Smith
patent: 3917996 (1975-11-01), Wagner
patent: 3919636 (1975-11-01), Few
patent: 3939694 (1976-02-01), Guichard
patent: 3978720 (1976-09-01), Ford
patent: 4224570 (1980-09-01), Meserow

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