FR1080716A - Procédé et dispositif de comptage des particules en suspension dans un fluide - Google Patents

Procédé et dispositif de comptage des particules en suspension dans un fluide

Info

Publication number
FR1080716A
FR1080716A FR1080716DA FR1080716A FR 1080716 A FR1080716 A FR 1080716A FR 1080716D A FR1080716D A FR 1080716DA FR 1080716 A FR1080716 A FR 1080716A
Authority
FR
France
Prior art keywords
suspension
fluid
counting particles
counting
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Inventor
Wallace-Henry Coulter
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22345996&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR1080716(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Application granted granted Critical
Publication of FR1080716A publication Critical patent/FR1080716A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G01N15/13—Details pertaining to apertures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
FR1080716D 1949-08-27 1953-04-21 Procédé et dispositif de comptage des particules en suspension dans un fluide Expired FR1080716A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US112819A US2656508A (en) 1949-08-27 1949-08-27 Means for counting particles suspended in a fluid

Publications (1)

Publication Number Publication Date
FR1080716A true FR1080716A (fr) 1954-12-13

Family

ID=22345996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1080716D Expired FR1080716A (fr) 1949-08-27 1953-04-21 Procédé et dispositif de comptage des particules en suspension dans un fluide

Country Status (5)

Country Link
US (1) US2656508A (fr)
DE (1) DE964810C (fr)
FR (1) FR1080716A (fr)
GB (1) GB722418A (fr)
NL (1) NL94112C (fr)

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