3-D capacitance density imaging of fluidized bed

Details 3-D capacitance density imaging of fluidized bed 3-D capacitance density imaging of fluidized bed

1988-03-18

1990-05-15

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324690, 73 61R, 73 611R, G01R 2726

Patent

active

049261126

ABSTRACT:
A three-dimensional capacitance density imaging of a gasified bed or the like in a containment vessel is achieved using a plurality of electrodes provided circumferentially about the bed in levels and along the bed in channels. The electrodes are individually and selectively excited electrically at each level to produce a plurality of current flux field patterns generated in the bed at each level. The current flux field patterns are suitably sensed and a density pattern of the bed at each level determined. By combining the determined density patterns at each level, a three-dimensional density image of the bed is achieved.

REFERENCES:
patent: 3221248 (1965-11-01), Batteau et al.
patent: 3639835 (1972-02-01), Dammig, Jr. et al.
patent: 3903478 (1975-09-01), Stewart et al.
patent: 4493039 (1985-01-01), Gregory
patent: 4689986 (1987-09-01), Garson et al.
patent: 4689988 (1987-09-01), Rydefalk
The Use of Capacitance Probes in Fluidized Beds, Power Technology, 1972, pp. 45-50, D. Geldart, J. R. Kelsey.

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