Particle measuring apparatus and particle measuring method by th

Details Particle measuring apparatus and particle measuring method by th Particle measuring apparatus and particle measuring method by th

1995-05-08

1997-04-22

Noland, Thomas P.

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

Particle counting

738655, 324699, G01N 1502

Patent

active

056232004

ABSTRACT:
Particle measuring apparatus 1 comprising slide plate 3 set between tanks 2a and 2b and having through-holes 8 to 11 passing through slide plate 3 and a pair of electrodes 4a and 4b, wherein through-holes 8 to 11 on slide plate 3 are formed by a group of through-holes with different diameters. When one of the through-holes 8 to 11 is brought to a position corresponding to connective holes 2c and 2d by driving unit 7, particle distribution is measured and analyzed in accordance with the electrical impedance when a sample suspension passes through the through-hole.

REFERENCES:
patent: 3783376 (1974-01-01), Doniguian
patent: 3958177 (1976-05-01), Reeves et al.
patent: 4471297 (1984-09-01), Berg
patent: 4760328 (1988-07-01), Groves
patent: 4901024 (1990-02-01), Miyake et al.
patent: 5376878 (1994-12-01), Fisher

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