Apparatus for measuring the electric charge condition of non-con

Details Apparatus for measuring the electric charge condition of non-con Apparatus for measuring the electric charge condition of non-con

1980-02-11

1981-10-27

Tokar, Michael J.

Electricity: measuring and testing

Electrostatic field

Using modulation-type electrometer

G01R 528

Patent

active

042976405

ABSTRACT:
The addition of a grounded electrode in a special location with respect to the location of the two sensing electrodes of an existing piston-inverted cylinder apparatus used in the measurement of the electric charge condition of non-conductive particles suspended in a mildly conductive electrolyte such as tap water converts the known apparatus into one whose accuracy, reliability and useful life are greatly increased. The grounded electrode is located nearer the open end of the cylinder than are the two sensing electrodes, and the grounded electrode should have a surface area which is several times that of the two sensing electrodes. All three electrodes must be made of the same metal.

REFERENCES:
patent: 3365376 (1968-01-01), Weyland
patent: 3368144 (1968-02-01), Gerdes
patent: 3368145 (1968-02-01), Gerdes
patent: 3369984 (1968-02-01), Gerdes
patent: 3993945 (1976-11-01), Warmoth

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