FR2146819A5 - - Google Patents

Info

Publication number
FR2146819A5
FR2146819A5 FR7225975A FR7225975A FR2146819A5 FR 2146819 A5 FR2146819 A5 FR 2146819A5 FR 7225975 A FR7225975 A FR 7225975A FR 7225975 A FR7225975 A FR 7225975A FR 2146819 A5 FR2146819 A5 FR 2146819A5
Authority
FR
France
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
FR7225975A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR2146819A5 publication Critical patent/FR2146819A5/fr
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
    • 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)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
FR7225975A 1971-07-22 1972-07-19 Expired FR2146819A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16527671A 1971-07-22 1971-07-22

Publications (1)

Publication Number Publication Date
FR2146819A5 true FR2146819A5 (fr) 1973-03-02

Family

ID=22598222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7225975A Expired FR2146819A5 (fr) 1971-07-22 1972-07-19

Country Status (6)

Country Link
US (1) US3781674A (fr)
JP (1) JPS539559B1 (fr)
CA (1) CA965843A (fr)
DE (1) DE2235366C3 (fr)
FR (1) FR2146819A5 (fr)
GB (1) GB1394182A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134460A2 (fr) * 1983-07-08 1985-03-20 Kontron-Holding Ag Procédé d'analyse de particules et dispositif pour la mise en oeuvre du procédé

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4263508A (en) * 1979-04-20 1981-04-21 Research Corporation Pulse edge measurement for determining particle dimensional characteristics
GB8321242D0 (en) * 1983-08-05 1983-09-07 Orbec Ltd Test apparatus
EP0289200B2 (fr) * 1987-04-27 1998-07-22 Fritz K. Preikschat Appareil et méthode pour l'analyse de particules
US5426501A (en) * 1993-01-06 1995-06-20 Laser Sensor Technology, Inc. Apparatus and method for particle analysis
US6175227B1 (en) 1997-07-03 2001-01-16 Coulter International Corp. Potential-sensing method and apparatus for sensing and characterizing particles by the Coulter principle
US6111398A (en) * 1997-07-03 2000-08-29 Coulter International Corp. Method and apparatus for sensing and characterizing particles
US20080001635A1 (en) * 2004-12-28 2008-01-03 Makoto Miyake Data Receiving Device and Data Receiving Method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3259842A (en) * 1959-08-19 1966-07-05 Coulter Electronics Particle analyzing device
US3271671A (en) * 1961-04-06 1966-09-06 Coulter Electronics Particle analyzing device
US3502973A (en) * 1966-05-23 1970-03-24 Coulter Electronics Collating apparatus for pairs of electrical pulses produced by particle analyzing apparatus
US3517321A (en) * 1967-02-17 1970-06-23 Burroughs Corp Rise time discriminator
US3594726A (en) * 1968-09-30 1971-07-20 Nester & Faust Mfg Corp Programmed slope and amplitude responsive system
US3548206A (en) * 1969-01-14 1970-12-15 Royco Instr Inc Noise rejection circuits for particle counters
US3617904A (en) * 1969-06-05 1971-11-02 Digitronics Corp Noise insensitive peak detector
US3599016A (en) * 1969-07-22 1971-08-10 Gen Electric Automatic reset circuit
US3701029A (en) * 1970-10-27 1972-10-24 Coulter Electronics Axial trajectory sensor having gating means controlled by pulse duration measuring for electronic particle study apparatus and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0134460A2 (fr) * 1983-07-08 1985-03-20 Kontron-Holding Ag Procédé d'analyse de particules et dispositif pour la mise en oeuvre du procédé
EP0134460A3 (en) * 1983-07-08 1985-10-23 Kontron-Holding Ag Method for the analysis of particles, and device for carrying out this method
US4633169A (en) * 1983-07-08 1986-12-30 Kontron Holding Ag Blood particle analyzer

Also Published As

Publication number Publication date
DE2235366B2 (de) 1978-01-19
JPS539559B1 (fr) 1978-04-06
GB1394182A (en) 1975-05-14
DE2235366C3 (de) 1978-09-21
CA965843A (en) 1975-04-08
US3781674A (en) 1973-12-25
DE2235366A1 (de) 1973-02-01

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Legal Events

Date Code Title Description
ST Notification of lapse