GB1249470A - Apparatus and method for measuring the dividing particle size of a particulate system - Google Patents

Apparatus and method for measuring the dividing particle size of a particulate system

Info

Publication number
GB1249470A
GB1249470A GB51644/68A GB5164468A GB1249470A GB 1249470 A GB1249470 A GB 1249470A GB 51644/68 A GB51644/68 A GB 51644/68A GB 5164468 A GB5164468 A GB 5164468A GB 1249470 A GB1249470 A GB 1249470A
Authority
GB
United Kingdom
Prior art keywords
particle size
particle
register
measuring
converted
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
GB51644/68A
Other languages
English (en)
Inventor
Wallace Henry Coulter
Walter Robert Hogg
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 GB1249470A publication Critical patent/GB1249470A/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
    • G01N15/131—Details
    • G01N15/132—Circuits

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
GB51644/68A 1967-11-01 1968-10-31 Apparatus and method for measuring the dividing particle size of a particulate system Expired GB1249470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67984067A 1967-11-01 1967-11-01

Publications (1)

Publication Number Publication Date
GB1249470A true GB1249470A (en) 1971-10-13

Family

ID=24728587

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51644/68A Expired GB1249470A (en) 1967-11-01 1968-10-31 Apparatus and method for measuring the dividing particle size of a particulate system

Country Status (12)

Country Link
US (1) US3557352A (enExample)
JP (1) JPS5126826B1 (enExample)
BE (1) BE723231A (enExample)
CA (1) CA938723A (enExample)
CH (1) CH498389A (enExample)
DE (1) DE1806456C3 (enExample)
FR (1) FR1590410A (enExample)
GB (1) GB1249470A (enExample)
IL (1) IL30981A (enExample)
NL (1) NL154326B (enExample)
SE (1) SE350837B (enExample)
SU (1) SU510165A3 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110553954A (zh) * 2019-08-22 2019-12-10 中国电建集团华东勘测设计研究院有限公司 一种确定含超大粒径巨粒土的颗粒级配的方法

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701029A (en) * 1970-10-27 1972-10-24 Coulter Electronics Axial trajectory sensor having gating means controlled by pulse duration measuring for electronic particle study apparatus and method
US3801903A (en) * 1970-10-27 1974-04-02 Coulter Electronics Particle study apparatus including an axial trajectory sensor
US3801901A (en) * 1970-10-27 1974-04-02 Coulter Electronics Particle study apparatus including an axial trajectory sensor
US3783391A (en) * 1971-02-08 1974-01-01 Coulter Electronics Axial trajectory sensor having gating means controlled by pulse duration measuring for electronic particle study apparatus and method
US3783390A (en) * 1971-02-09 1974-01-01 W Hogg Axial trajectory sensor having gating means controlled by pulse duration measuring for electronic particle study apparatus and method
US3699319A (en) * 1971-03-10 1972-10-17 Robert H Berg Average volume digital computer and digital volume totalizer for cells and particles
US3763357A (en) * 1971-12-22 1973-10-02 Bausch & Lomb Threshold circuit for converting a video signal to a binary video signal
US3801904A (en) * 1972-09-11 1974-04-02 Coulter Electronics Particle study apparatus including an axial trajectory sensor
US3867613A (en) * 1972-11-01 1975-02-18 Minnesota Mining & Mfg Particle counting apparatus
US3863056A (en) * 1973-06-29 1975-01-28 Coulter Electronics Method and apparatus for multichannel voting
US3892489A (en) * 1973-08-17 1975-07-01 Smithkline Corp Data acquisition system
US3936739A (en) * 1974-02-12 1976-02-03 Coulter Electronics, Inc. Method and apparatus for generating error corrected signals
US3902053A (en) * 1974-03-18 1975-08-26 Coulter Electronics Pre-set circuit for measuring a dividing particle size of a particulate system
US3944797A (en) * 1974-08-06 1976-03-16 Coulter Electronics, Inc. Method and apparatus for determining the correct percentiles of the size distribution of a particulate system
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
US4041468A (en) * 1976-10-07 1977-08-09 Pfizer Inc. Method and system for analysis of ambulatory electrocardiographic tape recordings
ES485470A1 (es) * 1978-12-19 1980-09-01 Contraves Ag Procedimiento para establecer un umbral de separacion para separar por lo menos dos clases de senales para analizar particulas y usos similares
ES487980A1 (es) * 1979-03-27 1980-10-01 Contraves Ag Dispositivo para un aparato analizador de particulas
US4706207A (en) * 1985-06-24 1987-11-10 Nova Celltrak, Inc. Count accuracy control means for a blood analyses system
US5452237A (en) * 1994-02-28 1995-09-19 Abbott Laboratories Coincidence error correction system for particle counters
CN100453037C (zh) * 2003-03-19 2009-01-21 天灵技术公司 用于测量和指示活体电阻变化的系统
KR20120083093A (ko) * 2011-01-17 2012-07-25 삼성전자주식회사 입자측정장치 및 이를 이용한 입자측정방법
EP2836815B1 (en) 2012-04-12 2020-08-05 Bio-Rad Laboratories, Inc. Particle dispensing apparatus and method
FR3034520B1 (fr) * 2015-04-02 2020-02-14 Horiba Abx Sas Dispositif de comptage de particules

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1177774A (fr) * 1960-04-26 1959-04-29 Evans Electroselenium Ltd Perfectionnements aux appareils de comptage des petites particules
US3392331A (en) * 1961-04-06 1968-07-09 Coulter Electronics Particle analyzer threshold level control
US3271672A (en) * 1961-09-20 1966-09-06 Coulter Electronics Particle studying device control circuit
GB1112770A (en) * 1964-12-10 1968-05-08 Hitachi Ltd Method and apparatus for analysing the particle size distribution of powder
US3444464A (en) * 1965-11-26 1969-05-13 Coulter Electronics Multiple aperture fittings for particle analyzing apparatus
US3331950A (en) * 1966-07-11 1967-07-18 Coulter Electronics Particle distribution plotting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110553954A (zh) * 2019-08-22 2019-12-10 中国电建集团华东勘测设计研究院有限公司 一种确定含超大粒径巨粒土的颗粒级配的方法
CN110553954B (zh) * 2019-08-22 2021-09-28 中国电建集团华东勘测设计研究院有限公司 一种确定含超大粒径巨粒土的颗粒级配的方法

Also Published As

Publication number Publication date
CH498389A (fr) 1970-10-31
SE350837B (enExample) 1972-11-06
DE1806456C3 (de) 1974-11-14
NL154326B (nl) 1977-08-15
IL30981A0 (en) 1968-12-26
US3557352A (en) 1971-01-19
DE1806456B2 (enExample) 1974-04-11
NL6815543A (enExample) 1969-05-05
BE723231A (enExample) 1969-04-30
CA938723A (en) 1973-12-18
FR1590410A (enExample) 1970-04-13
JPS5126826B1 (enExample) 1976-08-09
IL30981A (en) 1972-03-28
DE1806456A1 (de) 1969-06-19
SU510165A3 (ru) 1976-04-05

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