Method and apparatus for simultaneous measuring the streaming po

Details Method and apparatus for simultaneous measuring the streaming po Method and apparatus for simultaneous measuring the streaming po

1994-11-30

1996-04-23

Wieder, Kenneth A.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

324448, 324450, 73 5304, G01N 2700, G01N 1102

Patent

active

055107028

ABSTRACT:
A method and apparatus for simultaneously measuring the streaming potential of a fiber suspension and a filtrate thereof. A container is provided having an inlet and an outlet for the flow of fiber suspension therethrough, and a filter screen divides the container into an upstream compartment and a downstream compartment. Each compartment has an electrode pair disposed therein, each electrode pair including a cylindrical outer electrode configured for flow of fiber suspension therethrough and an inner electrode. Each electrode pair is connected to a differential amplifier, with the differential amplifiers connected to a microprocessor.

REFERENCES:
patent: 2602325 (1952-07-01), Campbell et al.
patent: 3538749 (1970-11-01), Danworth
patent: 4535285 (1985-08-01), Evans et al.
patent: 4687986 (1987-08-01), Eriksson
patent: 5365775 (1994-11-01), Penniman
patent: 5373229 (1994-12-01), Penniman

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