Electrical slit scanning apparatus

Details Electrical slit scanning apparatus Electrical slit scanning apparatus

1982-02-25

1985-07-02

Tokar, Michael J.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

G01N 2700

Patent

active

045271143

ABSTRACT:
A particle analyzer apparatus comprising a flow cell having a flow chamber wherein a flow of liquid suspension, having individual particles entrained therein, proceeds along a predetermined path; a pair of electrodes are disposed on opposed sides of the predetermined path, one of the electrodes having an end with a width parallel to the predetermined path that is less than the length of a given particle, the end of the electrode being positioned in close proximity to the predetermined path; energizing source for providing an electrical field between the pair of electrodes that traverses the predetermined path; and a particle pulse detector for detecting particle pulses caused by the particles passing through the electric field.

REFERENCES:
patent: 2656508 (1953-10-01), Coulter
patent: 3390326 (1968-06-01), Imadate
patent: 3502973 (1970-03-01), Coulter et al.
patent: 3502974 (1970-03-01), Coulter et al.
patent: 3657537 (1972-04-01), Wheeless, Jr. et al.
patent: 3668531 (1972-06-01), Hogg
patent: 3701029 (1972-10-01), Hogg
patent: 3720470 (1973-03-01), Berkhan
patent: 4290011 (1981-09-01), Berg et al.
patent: 4298836 (1981-11-01), Groves et al.

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