GB1055523A - Particle counting and sizing apparatus - Google Patents

Particle counting and sizing apparatus

Info

Publication number
GB1055523A
GB1055523A GB12115/63A GB1211565A GB1055523A GB 1055523 A GB1055523 A GB 1055523A GB 12115/63 A GB12115/63 A GB 12115/63A GB 1211565 A GB1211565 A GB 1211565A GB 1055523 A GB1055523 A GB 1055523A
Authority
GB
United Kingdom
Prior art keywords
aperture
particles
screen
counting
detected
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
GB12115/63A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coulter Electronics Ltd
Coulter Electronics Inc
Original Assignee
Coulter Electronics Ltd
Coulter Electronics Inc
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
Application filed by Coulter Electronics Ltd, Coulter Electronics Inc filed Critical Coulter Electronics Ltd
Publication of GB1055523A publication Critical patent/GB1055523A/en
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
    • G01N15/131—Details

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 Analysing Biological Materials (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measuring Volume Flow (AREA)
GB12115/63A 1964-07-14 1965-03-22 Particle counting and sizing apparatus Expired GB1055523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US382560A US3389334A (en) 1964-07-14 1964-07-14 Particle analyzing apparatus having means for observing a scanning aperture

Publications (1)

Publication Number Publication Date
GB1055523A true GB1055523A (en) 1967-01-18

Family

ID=23509507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12115/63A Expired GB1055523A (en) 1964-07-14 1965-03-22 Particle counting and sizing apparatus

Country Status (9)

Country Link
US (1) US3389334A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR6569508D0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH429240A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1283570B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK108181C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1055523A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IL (1) IL23227A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL6506111A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO117453B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5183604A (en) * 1992-01-24 1993-02-02 The Dow Chemical Company Size separation of particles contained within a material by the use of nonaqueous hydrodynamic chromatography

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780956A (en) * 1955-01-28 1957-02-12 Jones And Lamson Machine Compa Circle tolerance gauge for optical comparators
US2920525A (en) * 1956-08-13 1960-01-12 Arthur V Appel Apparatus for automatically counting and sizing airborne particles
US2958255A (en) * 1957-05-03 1960-11-01 Optical Measuring Tools Ltd Methods for indicating profiles
NL240601A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1958-12-29
US3015775A (en) * 1959-01-09 1962-01-02 Coulter Electronics Fluid metering system and apparatus

Also Published As

Publication number Publication date
US3389334A (en) 1968-06-18
IL23227A (en) 1968-10-24
DE1283570B (de) 1968-11-21
BR6569508D0 (pt) 1973-07-10
NL127594C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL6506111A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-01-17
DK108181C (da) 1967-10-02
CH429240A (fr) 1967-01-31
NO117453B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-08-11

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