CH618514A5 - - Google Patents

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Publication number
CH618514A5
CH618514A5 CH1039077A CH1039077A CH618514A5 CH 618514 A5 CH618514 A5 CH 618514A5 CH 1039077 A CH1039077 A CH 1039077A CH 1039077 A CH1039077 A CH 1039077A CH 618514 A5 CH618514 A5 CH 618514A5
Authority
CH
Switzerland
Prior art keywords
amplifier
voltage
input
current
measuring cell
Prior art date
Application number
CH1039077A
Other languages
German (de)
English (en)
Inventor
Walter Prof Dr Dip Guggenbuehl
Original Assignee
Contraves Ag
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 Contraves Ag filed Critical Contraves Ag
Priority to CH1039077A priority Critical patent/CH618514A5/de
Priority to DE2824852A priority patent/DE2824852C3/de
Priority to BE188503A priority patent/BE868040A/fr
Priority to SU782631654A priority patent/SU733524A3/ru
Priority to US05/923,915 priority patent/US4277743A/en
Priority to CA307,613A priority patent/CA1102878A/fr
Priority to ES471838A priority patent/ES471838A1/es
Priority to SE7808120A priority patent/SE7808120L/xx
Priority to FR7822022A priority patent/FR2401417A1/fr
Priority to DK342578A priority patent/DK342578A/da
Priority to GB7834123A priority patent/GB2003279B/en
Priority to IT26915/78A priority patent/IT1098137B/it
Priority to NL7808723A priority patent/NL7808723A/xx
Priority to JP10240478A priority patent/JPS5446092A/ja
Publication of CH618514A5 publication Critical patent/CH618514A5/de

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)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
CH1039077A 1977-08-24 1977-08-25 CH618514A5 (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
CH1039077A CH618514A5 (fr) 1977-08-25 1977-08-25
DE2824852A DE2824852C3 (de) 1977-08-25 1978-06-06 Vorrichtung zur Erzeugung von Meßimpulsen in einem Teilchenanalysator
BE188503A BE868040A (fr) 1977-08-25 1978-06-12 Procede et circuit pour la production d'impulsions de mesure dans un analyseur de particules
SU782631654A SU733524A3 (ru) 1977-08-25 1978-06-29 Устройство дл формировани измерительных импульсов в анализаторах частиц в жидкост х
US05/923,915 US4277743A (en) 1977-08-25 1978-07-12 Method and circuit for producing measuring pulses in a particle analyzer
CA307,613A CA1102878A (fr) 1977-08-24 1978-07-18 Traduction non-disponible
ES471838A ES471838A1 (es) 1977-08-25 1978-07-18 Procedimiento para producir impulsos de medicion en un ana- lizador de particulas y perfeccionamientos en los circuitos correspondientes
SE7808120A SE7808120L (sv) 1977-08-25 1978-07-25 Forfarande och koppling for alstring av metimpulser i en partikelanalysator
FR7822022A FR2401417A1 (fr) 1977-08-25 1978-07-25 Procede et circuit pour la production d'impulsions de mesure dans un analyseur de particules
DK342578A DK342578A (da) 1977-08-25 1978-08-02 Fremgangsmaade og apparat til frembringelse af maaleimpulser i en partikelanalysator
GB7834123A GB2003279B (en) 1977-08-25 1978-08-22 Method and apparatus for particle analysis and for forming a measuring signal in a particle analyser
IT26915/78A IT1098137B (it) 1977-08-25 1978-08-22 Procedimento e circuito per la produzione di impulsi di misura di un analizzatore di particelle
NL7808723A NL7808723A (nl) 1977-08-25 1978-08-24 Werkwijze en inrichting voor het opwekken van meetim- pulsen in een deeltjesanalysator.
JP10240478A JPS5446092A (en) 1977-08-25 1978-08-24 Method and apparatus for generating measured pulse in particle analyser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1039077A CH618514A5 (fr) 1977-08-25 1977-08-25

Publications (1)

Publication Number Publication Date
CH618514A5 true CH618514A5 (fr) 1980-07-31

Family

ID=4362709

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1039077A CH618514A5 (fr) 1977-08-24 1977-08-25

Country Status (14)

Country Link
US (1) US4277743A (fr)
JP (1) JPS5446092A (fr)
BE (1) BE868040A (fr)
CA (1) CA1102878A (fr)
CH (1) CH618514A5 (fr)
DE (1) DE2824852C3 (fr)
DK (1) DK342578A (fr)
ES (1) ES471838A1 (fr)
FR (1) FR2401417A1 (fr)
GB (1) GB2003279B (fr)
IT (1) IT1098137B (fr)
NL (1) NL7808723A (fr)
SE (1) SE7808120L (fr)
SU (1) SU733524A3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846149U (ja) * 1981-09-25 1983-03-28 エルマ光学株式会社 微粒子の体積測定装置
JPH01112448U (fr) * 1988-01-21 1989-07-28
DE19728031A1 (de) * 1997-07-01 1999-01-07 Bernd Horst Dr Meier Verfahren zur Messung von Volumen und Fluß von bewegten Flüssigkeiten und Vorrichtung zur Messung des Herzzeitvolumens und weiterer Kreislaufparameter
JP3611771B2 (ja) * 2000-04-21 2005-01-19 シスメックス株式会社 粒子信号処理装置およびそれを用いた粒子測定装置
JP4999242B2 (ja) * 2001-09-06 2012-08-15 シスメックス株式会社 抵抗式血球計数装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993948A (en) * 1969-12-15 1976-11-23 Coulter Electronics, Inc. Particle analyzer having scanning apparatus series coupled between a d.c. power source and the parallel connection of a d.c. short-circuiting device and a voltage sensitive signal detector
US3706030A (en) * 1970-12-28 1972-12-12 Coulter Electronics Electronic particle detector of the coulter type having conductivity change independence circuitry
US3924180A (en) * 1973-10-12 1975-12-02 Us Energy Potential sensing cell analyzer
US4093849A (en) * 1976-04-28 1978-06-06 J. T. Baker Chemical Co. Automatic blood analyzing system

Also Published As

Publication number Publication date
US4277743A (en) 1981-07-07
DK342578A (da) 1979-02-26
CA1102878A (fr) 1981-06-09
GB2003279A (en) 1979-03-07
ES471838A1 (es) 1979-02-01
DE2824852B2 (fr) 1979-12-13
DE2824852C3 (de) 1980-08-21
JPS5446092A (en) 1979-04-11
NL7808723A (nl) 1979-02-27
SE7808120L (sv) 1979-02-26
SU733524A3 (ru) 1980-05-05
IT1098137B (it) 1985-09-07
IT7826915A0 (it) 1978-08-22
DE2824852A1 (de) 1979-03-08
FR2401417A1 (fr) 1979-03-23
GB2003279B (en) 1982-03-03
BE868040A (fr) 1978-10-02

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Legal Events

Date Code Title Description
PL Patent ceased