Particle size distribution analyzer

Details Particle size distribution analyzer Particle size distribution analyzer

1982-12-10

1984-12-11

Wise, Edward J.

Boots, shoes, and leggings

377 11, G06F 1542

Patent

active

044882483

ABSTRACT:
A particle size distribution analyzer comprising a particle detector adapted to produce signals in response to the sizes of particles by electrical or optical differences between a liquid and the particles dispersed therein, a plurality of comparators connected in parallel to said particle detector for producing pulses in correspondence with said signals, counters connected to each of said comparators for counting said pulses, a data input/output unit connected to each individual counter, whereby said input/output circuit receives signals sent in parallel from said counters, a keyboard unit connected to said input/output circuit operative to enable various conditions to be input from the outside, a central processing unit circuit, a read only memory and, a random access memory connected to said later input/output unit for statistically processing the pulse received, and a data output unit connected to said data input/output unit, said data output unit including at least a recorder.

REFERENCES:
patent: 3390229 (1968-06-01), Williams
patent: 3810011 (1974-05-01), Coulter et al.
patent: 3812335 (1974-05-01), Coulter et al.
patent: 3935562 (1976-01-01), Stephens
patent: 3973189 (1976-08-01), Angel et al.
patent: 4071891 (1978-01-01), Barrows
patent: 4110604 (1978-08-01), Haynes et al.
patent: 4192005 (1980-03-01), Kurtz
patent: 4240107 (1980-12-01), Yoshida
patent: 4309757 (1982-01-01), Frey et al.

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