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CA935524A - Particle counting system - Google Patents

Particle counting system

Info

Publication number
CA935524A
CA935524A CA111458A CA111458A CA935524A CA 935524 A CA935524 A CA 935524A CA 111458 A CA111458 A CA 111458A CA 111458 A CA111458 A CA 111458A CA 935524 A CA935524 A CA 935524A
Authority
CA
Canada
Prior art keywords
counting system
particle counting
particle
counting
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
CA111458A
Inventor
E. Estelle Weems
R. Angel Henry
M. Petrucci Pasquale
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.)
GENERAL SCIENCE CORP
Original Assignee
GENERAL SCIENCE CORP
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 GENERAL SCIENCE CORP filed Critical GENERAL SCIENCE CORP
Application granted granted Critical
Publication of CA935524A publication Critical patent/CA935524A/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

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 Analyzing Materials By The Use Of Electric Means (AREA)
CA111458A 1970-04-28 1971-04-27 Particle counting system Expired CA935524A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3258270A 1970-04-28 1970-04-28

Publications (1)

Publication Number Publication Date
CA935524A true CA935524A (en) 1973-10-16

Family

ID=21865698

Family Applications (1)

Application Number Title Priority Date Filing Date
CA111458A Expired CA935524A (en) 1970-04-28 1971-04-27 Particle counting system

Country Status (3)

Country Link
US (1) US3657725A (en)
JP (1) JPS5625610B1 (en)
CA (1) CA935524A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769582A (en) * 1970-05-18 1973-10-30 Contraves Ag Particle counting apparatus
US3920961A (en) * 1971-07-28 1975-11-18 Robert H Berg Digital timer
CH544971A (en) * 1972-03-29 1973-11-30 Contraves Ag Method for detecting errors in counting particles contained in a specific volume of liquid
US3921066A (en) * 1974-02-25 1975-11-18 Angel Eng Corp Blood test device and method
US3936666A (en) * 1974-09-16 1976-02-03 Coulter Electronics, Inc. Apparatus for measuring a particle size dividing one of the mass or particle number of a particulate system into predetermined fractions
US4093849A (en) * 1976-04-28 1978-06-06 J. T. Baker Chemical Co. Automatic blood analyzing system
DE2716109A1 (en) 1977-04-12 1978-10-19 Kernforschungsanlage Juelich DEVICE FOR DETECTING ELECTRICALLY CONDUCTIVE GOODS GUIDED BY A PIPELINE
US4130754A (en) * 1977-06-16 1978-12-19 Cortex Research Corporation Particle counting
JP5235658B2 (en) * 2005-04-26 2013-07-10 サン−ゴバン グラス フランス Glazing including an electronic device and method for reading / writing information in the device
WO2010124202A1 (en) * 2009-04-24 2010-10-28 Beckman Coulter, Inc. Method of characterizing particles
US12487168B2 (en) * 2019-09-04 2025-12-02 Revvity Health Sciences, Inc. Systems and methods for cell count measurements

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271671A (en) * 1961-04-06 1966-09-06 Coulter Electronics Particle analyzing device
US3271672A (en) * 1961-09-20 1966-09-06 Coulter Electronics Particle studying device control circuit
US3520316A (en) * 1963-12-12 1970-07-14 Bowles Eng Corp Pressure-to-pressure transducer

Also Published As

Publication number Publication date
JPS5625610B1 (en) 1981-06-13
US3657725A (en) 1972-04-18

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