GB1359813A - Method and apparatus for determining errors during counting of particles - Google Patents

Method and apparatus for determining errors during counting of particles

Info

Publication number
GB1359813A
GB1359813A GB1171373A GB1171373A GB1359813A GB 1359813 A GB1359813 A GB 1359813A GB 1171373 A GB1171373 A GB 1171373A GB 1171373 A GB1171373 A GB 1171373A GB 1359813 A GB1359813 A GB 1359813A
Authority
GB
United Kingdom
Prior art keywords
particle
counter
march
compared
tube
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
GB1171373A
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.)
Rheinmetall Air Defence AG
Original Assignee
Oerlikon Contraves AG
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 Oerlikon Contraves AG filed Critical Oerlikon Contraves AG
Publication of GB1359813A publication Critical patent/GB1359813A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities
    • G06M3/12—Counters with additional facilities for preventing incorrect actuation, e.g. for preventing falsification
    • 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
    • G01N15/132—Circuits
    • 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
    • G01N15/06—Investigating concentration of particle suspensions
    • G01N15/075—Investigating concentration of particle suspensions by optical means
    • 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
    • G01N2015/1019—Associating Coulter-counter and optical flow cytometer [OFC]
    • 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
    • G01N2015/1024—Counting particles by non-optical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
GB1171373A 1972-03-29 1973-03-12 Method and apparatus for determining errors during counting of particles Expired GB1359813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH473972A CH544971A (de) 1972-03-29 1972-03-29 Verfahren zum Feststellen von Fehlern beim Zählen von in einem bestimmten Flüssigkeitsvolumen enthaltenen Teilchen

Publications (1)

Publication Number Publication Date
GB1359813A true GB1359813A (en) 1974-07-10

Family

ID=4281654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1171373A Expired GB1359813A (en) 1972-03-29 1973-03-12 Method and apparatus for determining errors during counting of particles

Country Status (8)

Country Link
US (1) US3868498A (https=)
JP (1) JPS5539773B2 (https=)
CA (1) CA962737A (https=)
CH (1) CH544971A (https=)
FR (1) FR2177765B1 (https=)
GB (1) GB1359813A (https=)
IT (1) IT981446B (https=)
SE (1) SE388688B (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319618A (en) * 1996-11-20 1998-05-27 Microbial Systems Ltd Particle sizing apparatus
US6418802B1 (en) * 1996-11-21 2002-07-16 Michael Anthony Wood Particle sizing apparatus and method of use thereof

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038534A (en) * 1975-02-27 1977-07-26 Mohammad Kian Mirdadian Methods and systems for use with pulse train circuitry
DE2552079C2 (de) * 1975-11-20 1983-07-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur Bestimmung des Mittelwertes einer Frequenz
US4218610A (en) * 1976-04-28 1980-08-19 J. T. Baker Chemical Co. Automatic blood analyzing system
US4093849A (en) * 1976-04-28 1978-06-06 J. T. Baker Chemical Co. Automatic blood analyzing system
DE2812470A1 (de) * 1977-09-15 1979-03-22 Becton Dickinson Co Verfahren und vorrichtung zur genauen zaehlung von blutkoerperchen o.dgl.
US4320415A (en) * 1979-06-14 1982-03-16 National Research Development Corporation Method of and apparatus for measuring electrophoretic mobility of cells
JPS59165058U (ja) * 1984-03-16 1984-11-06 東亜医用電子株式会社 粒子計数装置
JPS61160038A (ja) * 1985-01-08 1986-07-19 Sumitomo Electric Ind Ltd 粒子検出器
EP0369489A3 (en) * 1988-11-18 1991-11-27 Omron Corporation Sensor controller system
DE102016006426B4 (de) * 2016-05-31 2020-09-17 Flughafen Düsseldorf GmbH Zählen von Behältern mit übereinstimmenden vordefinierten Abmessungen auf einer Transportvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH447636A (de) * 1965-11-24 1967-11-30 Wirth Gallo & Co Auswertungsgerät für eine Messeinrichtung
GB1137177A (en) * 1966-11-23 1968-12-18 Ashworth Ross & Company Ltd Improvements relating to counting
US3507146A (en) * 1968-02-09 1970-04-21 Webb James E Method and system for respiration analysis
US3638186A (en) * 1969-09-26 1972-01-25 Heidenhain Johannes Dr Arrangement for error determination
US3657725A (en) * 1970-04-28 1972-04-18 Gen Science Corp Particle counting system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319618A (en) * 1996-11-20 1998-05-27 Microbial Systems Ltd Particle sizing apparatus
GB2319618B (en) * 1996-11-20 2000-08-23 Microbial Systems Ltd Particle sizing apparatus
US6389912B1 (en) 1996-11-20 2002-05-21 Michael Anthony Wood Particle sizing apparatus and method of use thereof
US6418802B1 (en) * 1996-11-21 2002-07-16 Michael Anthony Wood Particle sizing apparatus and method of use thereof

Also Published As

Publication number Publication date
DE2300356A1 (de) 1973-10-11
FR2177765A1 (https=) 1973-11-09
DE2300356B2 (de) 1976-03-04
CH544971A (de) 1973-11-30
IT981446B (it) 1974-10-10
SE388688B (sv) 1976-10-11
FR2177765B1 (https=) 1976-05-21
CA962737A (en) 1975-02-11
JPS4916475A (https=) 1974-02-13
US3868498A (en) 1975-02-25
JPS5539773B2 (https=) 1980-10-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee