AU508072B2 - Electronic particle sensing aperture - Google Patents

Electronic particle sensing aperture

Info

Publication number
AU508072B2
AU508072B2 AU32860/78A AU3286078A AU508072B2 AU 508072 B2 AU508072 B2 AU 508072B2 AU 32860/78 A AU32860/78 A AU 32860/78A AU 3286078 A AU3286078 A AU 3286078A AU 508072 B2 AU508072 B2 AU 508072B2
Authority
AU
Australia
Prior art keywords
particle sensing
sensing aperture
electronic particle
electronic
aperture
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
AU32860/78A
Other languages
English (en)
Other versions
AU3286078A (en
Inventor
R. O. Starling J. D. James B. D. Godin T. J. Ginsberg G. Drbal V. J. and Ssulga A Simpson
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
Priority claimed from US05/768,864 external-priority patent/US4090128A/en
Application filed by Coulter Electronics Inc filed Critical Coulter Electronics Inc
Publication of AU3286078A publication Critical patent/AU3286078A/en
Application granted granted Critical
Publication of AU508072B2 publication Critical patent/AU508072B2/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
    • G01N15/13—Details pertaining to apertures
    • 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

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
AU32860/78A 1977-02-15 1978-01-31 Electronic particle sensing aperture Expired AU508072B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
USUS768,864 1977-02-15
US05/768,864 US4090128A (en) 1977-02-15 1977-02-15 Aperture module for use in particle testing apparatus
US86837478A 1978-01-10 1978-01-10
USUS868,374 1978-01-10

Publications (2)

Publication Number Publication Date
AU3286078A AU3286078A (en) 1979-08-09
AU508072B2 true AU508072B2 (en) 1980-03-06

Family

ID=27118096

Family Applications (1)

Application Number Title Priority Date Filing Date
AU32860/78A Expired AU508072B2 (en) 1977-02-15 1978-01-31 Electronic particle sensing aperture

Country Status (11)

Country Link
JP (1) JPS53121695A (fr)
AU (1) AU508072B2 (fr)
CH (1) CH623931A5 (fr)
DE (1) DE2806383A1 (fr)
ES (1) ES466979A1 (fr)
FR (1) FR2380549A1 (fr)
GB (1) GB1597904A (fr)
IL (1) IL53921A (fr)
IT (1) IT1101790B (fr)
NL (1) NL7801072A (fr)
SE (1) SE7801123L (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337597B (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
SE0101597D0 (sv) * 2001-05-09 2001-05-09 Astrazeneca Ab Apparatus and method of testing pressurised containers by non-invasive means

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520316A (en) * 1963-12-12 1970-07-14 Bowles Eng Corp Pressure-to-pressure transducer
US3746976A (en) * 1971-04-07 1973-07-17 Coulter Electronics Self-cleaning aperture tube for coulter study apparatus
US3902115A (en) * 1973-09-26 1975-08-26 Coulter Electronics Self-cleaning aperture tube for coulter study apparatus and electrolyte supply system therefor
US4014611A (en) * 1975-04-30 1977-03-29 Coulter Electronics, Inc. Aperture module for use in particle testing apparatus

Also Published As

Publication number Publication date
IL53921A0 (en) 1978-04-30
IT1101790B (it) 1985-10-07
SE7801123L (sv) 1978-02-13
JPS53121695A (en) 1978-10-24
FR2380549B1 (fr) 1983-07-08
IT7848010A0 (it) 1978-02-10
CH623931A5 (en) 1981-06-30
AU3286078A (en) 1979-08-09
DE2806383A1 (de) 1978-08-17
ES466979A1 (es) 1979-08-16
IL53921A (en) 1979-12-30
GB1597904A (en) 1981-09-16
FR2380549A1 (fr) 1978-09-08
NL7801072A (nl) 1978-08-17

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