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US 10,768,090 B2Granted
Particle counting apparatus
AssigneeHoriba, Ltd.
InventorsMotoaki Hamada, Kazumasa Takemoto, Yoji Kawanami
Life of this patent
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Abstract
An outside opening of each aperture of a plurality of counting chambers for performing particle counting based on the electric resistance method is connected to suction pump through a confluent piping. Liquid supplying part supplies an additional liquid to the counting chamber side after completion of counting of counting chamber, so that the liquid level of sample liquid of counting chamber will not descend to aperture or a predetermined liquid level.
Claims4
A particle counting apparatus for counting particles in a sample liquid, comprising
- a plurality of counting chambers each provided with an aperture and a pair of electrodes for counting particles based on the electric resistance method,
- a suction pump, and
- a liquid supplying part for supplying a liquid to one or more predetermined counting chambers,
- wherein
- the aperture of each of the plurality of counting chambers has an outside opening connected to the suction pump through a confluent piping, and
- the liquid supplying part supplies a liquid to said one or more predetermined counting chambers or to a flow path on the predetermined counting chamber side than a confluent part in the confluent piping, after completion of counting in said one or more predetermined counting chambers, such that a liquid level of the sample liquid in said one or more predetermined counting chambers would not descend to the aperture or to a predetermined liquid level above the aperture.
3 more elements
Dependencies are inferred from the claim text.