FR2380549A1 - Module a ouverture avec electrode perforee pour la detection electronique de particules - Google Patents

Module a ouverture avec electrode perforee pour la detection electronique de particules

Info

Publication number
FR2380549A1
FR2380549A1 FR7804136A FR7804136A FR2380549A1 FR 2380549 A1 FR2380549 A1 FR 2380549A1 FR 7804136 A FR7804136 A FR 7804136A FR 7804136 A FR7804136 A FR 7804136A FR 2380549 A1 FR2380549 A1 FR 2380549A1
Authority
FR
France
Prior art keywords
particle detection
opening
opening module
perforated electrode
chamber
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.)
Granted
Application number
FR7804136A
Other languages
English (en)
French (fr)
Other versions
FR2380549B1 (xx
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 FR2380549A1 publication Critical patent/FR2380549A1/fr
Application granted granted Critical
Publication of FR2380549B1 publication Critical patent/FR2380549B1/fr
Granted 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)
FR7804136A 1977-02-15 1978-02-14 Module a ouverture avec electrode perforee pour la detection electronique de particules Granted FR2380549A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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

Publications (2)

Publication Number Publication Date
FR2380549A1 true FR2380549A1 (fr) 1978-09-08
FR2380549B1 FR2380549B1 (xx) 1983-07-08

Family

ID=27118096

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7804136A Granted FR2380549A1 (fr) 1977-02-15 1978-02-14 Module a ouverture avec electrode perforee pour la detection electronique de particules

Country Status (11)

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

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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1571423A (xx) * 1963-12-12 1969-06-20
US3746976A (en) * 1971-04-07 1973-07-17 Coulter Electronics Self-cleaning aperture tube for coulter study apparatus
FR2244989A1 (xx) * 1973-09-26 1975-04-18 Coulter W
FR2309856A1 (fr) * 1975-04-30 1976-11-26 Coulter Electronics Module a ouverture pour un appareil d'analyse de particules

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1571423A (xx) * 1963-12-12 1969-06-20
US3746976A (en) * 1971-04-07 1973-07-17 Coulter Electronics Self-cleaning aperture tube for coulter study apparatus
FR2244989A1 (xx) * 1973-09-26 1975-04-18 Coulter W
FR2309856A1 (fr) * 1975-04-30 1976-11-26 Coulter Electronics Module a ouverture pour un appareil d'analyse de particules

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 (xx) 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
AU508072B2 (en) 1980-03-06
NL7801072A (nl) 1978-08-17

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse