[go: up one dir, main page]

ZA711210B - Particle size analyzing apparatus and method using threshold level control - Google Patents

Particle size analyzing apparatus and method using threshold level control

Info

Publication number
ZA711210B
ZA711210B ZA711210A ZA711210A ZA711210B ZA 711210 B ZA711210 B ZA 711210B ZA 711210 A ZA711210 A ZA 711210A ZA 711210 A ZA711210 A ZA 711210A ZA 711210 B ZA711210 B ZA 711210B
Authority
ZA
South Africa
Prior art keywords
particle size
threshold level
level control
analyzing apparatus
size analyzing
Prior art date
Application number
ZA711210A
Other languages
English (en)
Inventor
W Coulter
W Hogg
Original Assignee
W 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
Application filed by W Coulter filed Critical W Coulter
Publication of ZA711210B publication Critical patent/ZA711210B/xx

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
    • G01N15/132—Circuits

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 Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
ZA711210A 1970-05-25 1971-02-25 Particle size analyzing apparatus and method using threshold level control ZA711210B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4023170A 1970-05-25 1970-05-25

Publications (1)

Publication Number Publication Date
ZA711210B true ZA711210B (en) 1972-09-27

Family

ID=21909862

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA711210A ZA711210B (en) 1970-05-25 1971-02-25 Particle size analyzing apparatus and method using threshold level control

Country Status (12)

Country Link
US (1) US3757213A (xx)
BE (1) BE763433A (xx)
CA (1) CA937289A (xx)
CH (1) CH535954A (xx)
DE (1) DE2109046A1 (xx)
ES (1) ES388642A1 (xx)
FR (1) FR2092378A5 (xx)
GB (1) GB1330587A (xx)
IL (1) IL36295A (xx)
NL (1) NL7102426A (xx)
SE (1) SE369119B (xx)
ZA (1) ZA711210B (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810011A (en) * 1970-05-25 1974-05-07 Coulter Electronics Apparatus and method for analyzing the particle volume distribution for a plurality of particles of different size in a quantity of liquid
US3973189A (en) * 1972-05-15 1976-08-03 General Science Corporation Hematology system
US3828260A (en) * 1973-04-02 1974-08-06 Royco Instr Inc Hematocrit measuring apparatus
US3863056A (en) * 1973-06-29 1975-01-28 Coulter Electronics Method and apparatus for multichannel voting
US3982183A (en) * 1975-02-20 1976-09-21 Coulter Electronics, Inc. Particle sizing apparatus
US4110604A (en) * 1976-11-04 1978-08-29 Becton, Dickinson And Company Particle density measuring system
US4450435A (en) * 1981-11-30 1984-05-22 Bobby Dencil James Analog debris alarm
US4704364A (en) * 1984-05-18 1987-11-03 Coulter Electronics, Inc. Hematology control compositions for three populations of leukocytes; and methods for their preparation and use in whole blood control systems
US5204884A (en) * 1991-03-18 1993-04-20 University Of Rochester System for high-speed measurement and sorting of particles
US6999171B2 (en) * 2001-08-07 2006-02-14 Sysmex Corporation Apparatus and method for measuring particle size
US7701193B2 (en) * 2003-09-02 2010-04-20 Chempaq A/S Pulse height analyser
RU2296327C2 (ru) * 2004-08-30 2007-03-27 Федеральное государственное учреждение науки "Государственный научный центр вирусологии и биотехнологии "Вектор" Федеральной службы по надзору в сфере защиты прав потребителей и благополучия человека (ФГУН ГНЦ ВБ "Вектор" Роспотребнадзора) Способ дифференциальной диагностики заболеваний печени
EP1797412A1 (en) * 2004-10-01 2007-06-20 Chempaq A/S A method for calibrating a particle counting apparatus
AU2009221393B2 (en) * 2008-03-03 2014-01-09 Koninklijke Philips Electronics N.V. High resolution classification

Also Published As

Publication number Publication date
IL36295A (en) 1973-11-28
GB1330587A (en) 1973-09-19
CA937289A (en) 1973-11-20
SE369119B (xx) 1974-08-05
NL7102426A (xx) 1971-11-29
DE2109046A1 (de) 1971-12-02
US3757213A (en) 1973-09-04
CH535954A (fr) 1973-04-15
IL36295A0 (en) 1971-04-28
BE763433A (fr) 1971-08-25
ES388642A1 (es) 1974-02-16
FR2092378A5 (xx) 1972-01-21

Similar Documents

Publication Publication Date Title
CA954771A (en) Decontamination method and apparatus
CA940192A (en) Apparatus and method for sorting particles
IL35175A0 (en) Data processing method and apparatus
IL36138A (en) Method and apparatus for moving objects
IL36295A0 (en) Particle size analyzing apparatus and method using threshold level control
IL38060A (en) Chromatographic apparatus and method
ZA715447B (en) Rivet setting apparatus and method
IL34502A0 (en) Wire-splicing apparatus and method
IL37662A0 (en) Method and apparatus for building
GB1373530A (en) Apparatus and method for sorting or controlling particles
GB1140313A (en) Analysis method and apparatus
ZA704955B (en) Centrifugal absorbtive thermody-dynamic apparatus and method
ZA717156B (en) Comminuting method and apparatus
ZA715453B (en) Method and apparatus for cooking
MY7400227A (en) Improved radiological well logging method and apparatus
IL38445A0 (en) Automatic palletizer method and apparatus
AU453137B2 (en) Particle size analyzing apparatus and method using threshold level control
CA978099A (en) Concentration reduction method and apparatus
AU2590071A (en) Particle size analyzing apparatus and method using threshold level control
ZA706076B (en) Method and apparatus for strengthening nails
CA857137A (en) Particle separation apparatus and method
CA834558A (en) Classification method and apparatus
ZA705803B (en) Method and apparatus for recovering minerals
ZA698553B (en) Screening method and apparatus
CA832759A (en) Method and apparatus for particle counting