GB2065311B - Particle study device aperture cleaning systems and methods - Google Patents

Particle study device aperture cleaning systems and methods

Info

Publication number
GB2065311B
GB2065311B GB8039983A GB8039983A GB2065311B GB 2065311 B GB2065311 B GB 2065311B GB 8039983 A GB8039983 A GB 8039983A GB 8039983 A GB8039983 A GB 8039983A GB 2065311 B GB2065311 B GB 2065311B
Authority
GB
United Kingdom
Prior art keywords
methods
cleaning systems
device aperture
study device
particle study
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
GB8039983A
Other languages
English (en)
Other versions
GB2065311A (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.)
Coulter Electronics Inc
Original Assignee
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 Inc filed Critical Coulter Electronics Inc
Publication of GB2065311A publication Critical patent/GB2065311A/en
Application granted granted Critical
Publication of GB2065311B publication Critical patent/GB2065311B/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
    • 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
    • G01N15/13—Details pertaining to 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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
GB8039983A 1979-12-12 1980-12-12 Particle study device aperture cleaning systems and methods Expired GB2065311B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10264179A 1979-12-12 1979-12-12
US10264279A 1979-12-12 1979-12-12

Publications (2)

Publication Number Publication Date
GB2065311A GB2065311A (en) 1981-06-24
GB2065311B true GB2065311B (en) 1984-05-31

Family

ID=26799591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8039983A Expired GB2065311B (en) 1979-12-12 1980-12-12 Particle study device aperture cleaning systems and methods

Country Status (3)

Country Link
DE (1) DE3046911A1 (enrdf_load_stackoverflow)
FR (1) FR2472183B1 (enrdf_load_stackoverflow)
GB (1) GB2065311B (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337599B (en) * 1996-11-20 2000-08-16 Microbial Systems Ltd Particle sizing apparatus
GB9624096D0 (en) 1996-11-20 1997-01-08 Microbial Systems Ltd 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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259891A (en) * 1964-05-01 1966-07-05 Coulter Electronics Debris alarm
US3444464A (en) * 1965-11-26 1969-05-13 Coulter Electronics Multiple aperture fittings for particle analyzing apparatus
US3530381A (en) * 1968-01-15 1970-09-22 Coulter Electronics Voting circuit control apparatus for multiple aperture particle analyzing device
US3963984A (en) * 1974-11-04 1976-06-15 Coulter Electronics, Inc. Method and system for cleaning an aperture in a particle study device
US4078211A (en) * 1976-09-29 1978-03-07 Coulter Electronics, Inc. Method and apparatus for balancing particle detecting signals generated in a particle study device having multiple apertures

Also Published As

Publication number Publication date
GB2065311A (en) 1981-06-24
DE3046911A1 (de) 1981-09-03
DE3046911C2 (enrdf_load_stackoverflow) 1991-06-27
FR2472183B1 (fr) 1986-03-07
FR2472183A1 (fr) 1981-06-26

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Legal Events

Date Code Title Description
PG Patent granted