CA953786A - Apparatus for counting and classifying particles suspended in a test liquid - Google Patents

Apparatus for counting and classifying particles suspended in a test liquid

Info

Publication number
CA953786A
CA953786A CA136,644A CA136644A CA953786A CA 953786 A CA953786 A CA 953786A CA 136644 A CA136644 A CA 136644A CA 953786 A CA953786 A CA 953786A
Authority
CA
Canada
Prior art keywords
counting
test liquid
particles suspended
classifying particles
classifying
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
CA136,644A
Other languages
English (en)
Other versions
CA136644S (en
Inventor
Reinhard Thom
Jurgen Schulz
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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
Priority claimed from DE19712111356 external-priority patent/DE2111356A1/de
Priority claimed from DE2145531A external-priority patent/DE2145531C2/de
Priority claimed from DE19722201894 external-priority patent/DE2201894A1/de
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Application granted granted Critical
Publication of CA953786A publication Critical patent/CA953786A/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
    • G01N15/134—Devices using two or more apertures

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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
CA136,644A 1971-03-10 1972-03-09 Apparatus for counting and classifying particles suspended in a test liquid Expired CA953786A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19712111356 DE2111356A1 (de) 1971-03-10 1971-03-10 Vorrichtung zum Bestimmen der Anzahl und/oder der Groesse von in einer Probenfluessigkeit suspendierten Partikeln
DE2145531A DE2145531C2 (de) 1971-09-11 1971-09-11 Vorrichtung zum Zählen und Klassieren von in einer elektrisch leitenden Flüssigkeit suspendierten Teilchen
DE19722201894 DE2201894A1 (de) 1972-01-15 1972-01-15 Verfahren zum zaehlen und klassieren von in einer untersuchungsfluessigkeit suspendierten partikeln

Publications (1)

Publication Number Publication Date
CA953786A true CA953786A (en) 1974-08-27

Family

ID=27183256

Family Applications (1)

Application Number Title Priority Date Filing Date
CA136,644A Expired CA953786A (en) 1971-03-10 1972-03-09 Apparatus for counting and classifying particles suspended in a test liquid

Country Status (10)

Country Link
JP (1) JPS5435115B1 (de)
BE (1) BE780440A (de)
CA (1) CA953786A (de)
CH (1) CH558529A (de)
ES (1) ES400399A1 (de)
FR (1) FR2132004B1 (de)
GB (1) GB1322686A (de)
IT (1) IT953449B (de)
NL (1) NL7202865A (de)
SE (1) SE375614B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165484A (en) * 1977-03-23 1979-08-21 Becton, Dickinson And Company Particle counting apparatus utilizing various fluid resistors to maintain proper pressure differentials

Also Published As

Publication number Publication date
ES400399A1 (es) 1975-01-01
BE780440A (fr) 1972-07-03
JPS5435115B1 (de) 1979-10-31
GB1322686A (en) 1973-07-11
FR2132004A1 (de) 1972-11-17
SE375614B (de) 1975-04-21
FR2132004B1 (de) 1976-02-20
IT953449B (it) 1973-08-10
NL7202865A (de) 1972-09-12
CH558529A (de) 1975-01-31

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