ES471120A1 - Procedimiento y sistema para analizar particulas que se en- cuentran en suspension en un liquido - Google Patents

Procedimiento y sistema para analizar particulas que se en- cuentran en suspension en un liquido

Info

Publication number
ES471120A1
ES471120A1 ES471120A ES471120A ES471120A1 ES 471120 A1 ES471120 A1 ES 471120A1 ES 471120 A ES471120 A ES 471120A ES 471120 A ES471120 A ES 471120A ES 471120 A1 ES471120 A1 ES 471120A1
Authority
ES
Spain
Prior art keywords
electrodes
auxiliary
liquid
channel
potential difference
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
ES471120A
Other languages
English (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.)
Rheinmetall Air Defence AG
Original Assignee
Contraves AG
Oerlikon 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, Oerlikon Contraves AG filed Critical Contraves AG
Publication of ES471120A1 publication Critical patent/ES471120A1/es
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)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Procedimiento para analizar partículas que se encuentran en suspensión en un líquido, particularmente glóbulos sanguíneos, con dos recipientes para la suspensión separados por una pared aislante, un canal longitudinal que atraviesa la pared, dos electrodos de alimentación conectados a sendos polos de una alimentación eléctrica y que están en contacto con el líquido en cada uno de los recipientes, por lo menos un electrodo adicional que está en contacto con el líquido en el canal, cuyas dimensiones paralelas en la dirección longitudinal del canal son pequeñas en proporción con la longitud del canal, y medios sensores, de los cuales cada vez uno de ellos está asignado a un par de electrodos para determinar las variaciones en el curso del tiempo de la diferencia de potencial entre estos electrodos, caracterizado porque se forma un valor auxiliar asignado al transcurso de tiempo de la diferencia de potencial entre un electrodo adicional determinado y uno de los otros electrodos y un valor de medición asignado al transcurso de tiempo de la diferencia de potencial entre dos de los otros electrodos, y porque se dispara una exploración del valor de medición para obtener un valor de exploración correspondiente a una partícula en función del valor auxiliar.
ES471120A 1977-06-27 1978-06-26 Procedimiento y sistema para analizar particulas que se en- cuentran en suspension en un liquido Expired ES471120A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH784277A CH614781A5 (es) 1977-06-27 1977-06-27

Publications (1)

Publication Number Publication Date
ES471120A1 true ES471120A1 (es) 1979-01-01

Family

ID=4331230

Family Applications (1)

Application Number Title Priority Date Filing Date
ES471120A Expired ES471120A1 (es) 1977-06-27 1978-06-26 Procedimiento y sistema para analizar particulas que se en- cuentran en suspension en un liquido

Country Status (13)

Country Link
US (1) US4161690A (es)
JP (1) JPS5412794A (es)
BE (1) BE867676A (es)
CA (1) CA1103312A (es)
CH (1) CH614781A5 (es)
DE (1) DE2824831C3 (es)
DK (1) DK146984C (es)
ES (1) ES471120A1 (es)
FR (1) FR2396285B1 (es)
GB (1) GB1602134A (es)
IT (1) IT1096003B (es)
NL (1) NL188308C (es)
SE (1) SE438554B (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438390A (en) 1981-03-23 1984-03-20 Coulter Electronics, Inc. Tandem sensing zones for improved signal-to-noise ratio in particle analyzer
US4488116A (en) * 1981-09-22 1984-12-11 Mars, Incorporated Inductive coin sensor for measuring more than one parameter of a moving coin
US4510438A (en) * 1982-02-16 1985-04-09 Coulter Electronics, Inc. Coincidence correction in particle analysis system
DE3411936A1 (de) * 1983-03-31 1984-10-11 Eduard Dr.med. Stäfa Bretschger Teilchenzaehleinrichtung und verfahren zu deren betrieb
US4607526A (en) * 1984-12-21 1986-08-26 Allied Corporation Particle analysis system
DE3522186A1 (de) * 1985-06-21 1987-01-02 Hoechst Ag Messeinrichtung zum messen des verformungsvermoegens von roten blutkoerperchen
GB8606299D0 (en) * 1986-03-14 1986-04-23 Holley J E F Scanner
US4977517A (en) * 1988-09-21 1990-12-11 Toni Diagnostics, Inc. Leak and clog detection and removal system for use with particle counters
CA1315127C (en) * 1989-02-03 1993-03-30 Raynald Hachey Apparatus for particle determination in liquid metals
CA1328679C (en) * 1989-05-18 1994-04-19 Raynald Hachey Apparatus for particle determination in liquid metals
GB2232769B (en) * 1989-06-13 1994-06-22 Timothy Charles Fisher Counting and volume measurement of particles and biological cells,and determination of their deformability
US5376878A (en) * 1991-12-12 1994-12-27 Fisher; Timothy C. Multiple-aperture particle counting sizing and deformability-measuring apparatus
US6111398A (en) * 1997-07-03 2000-08-29 Coulter International Corp. Method and apparatus for sensing and characterizing particles
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
CA2229528A1 (en) 1998-02-13 1999-08-13 Shailesh Mehta Apparatus and method for analyzing particles
US6259242B1 (en) * 1999-05-26 2001-07-10 Coulter International Corp. Apparatus incorporating a sensing conduit in conductive material and method of use thereof for sensing and characterizing particles
ES2758033T3 (es) 2004-03-04 2020-05-04 Novelis Inc Configuración de electrodo para LIMCA
US9121843B2 (en) 2007-05-08 2015-09-01 Trustees Of Boston University Chemical functionalization of solid-state nanopores and nanopore arrays and applications thereof
JP2012524908A (ja) * 2009-04-24 2012-10-18 ベックマン コールター， インコーポレイテッド 粒子を特徴づける方法
AU2010301128B2 (en) 2009-09-30 2014-09-18 Quantapore, Inc. Ultrafast sequencing of biological polymers using a labeled nanopore
US9651539B2 (en) 2012-10-28 2017-05-16 Quantapore, Inc. Reducing background fluorescence in MEMS materials by low energy ion beam treatment
AU2014268322B2 (en) 2013-05-24 2019-01-24 Quantapore, Inc. Nanopore-based nucleic acid analysis with mixed FRET detection
JP6740222B2 (ja) 2014-10-10 2020-08-12 クアンタポール， インコーポレイテッド 互いに消光する蛍光標識とのナノポアを基礎にしたポリマー分析
CN107002126B (zh) 2014-10-24 2021-05-25 昆塔波尔公司 使用纳米结构阵列的聚合物的高效光学分析
US10823721B2 (en) 2016-07-05 2020-11-03 Quantapore, Inc. Optically based nanopore sequencing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996917A (en) * 1958-02-13 1961-08-22 Walter P Christoph Electrolytic apparatus for temperature and radiation measurements
US3801901A (en) * 1970-10-27 1974-04-02 Coulter Electronics Particle study apparatus including an axial trajectory sensor
US3821644A (en) * 1971-04-26 1974-06-28 H Gohde Device for automatic counting and measurement of suspended particles
CH546437A (de) * 1972-06-30 1974-02-28 Contraves Ag Verfahren und einrichtung zur kompensation der temperaturabhaengigkeit einer fluessigkeit bei der bestimmung von in derselben suspendierten teilchen.
US3973194A (en) * 1972-08-07 1976-08-03 Becton, Dickinson And Company Particle counter

Also Published As

Publication number Publication date
FR2396285B1 (es) 1985-03-08
SE438554B (sv) 1985-04-22
NL188308C (nl) 1992-05-18
IT7824714A0 (it) 1978-06-20
GB1602134A (en) 1981-11-04
US4161690A (en) 1979-07-17
FR2396285A1 (es) 1979-01-26
DK250878A (da) 1978-12-28
BE867676A (fr) 1978-09-18
NL188308B (nl) 1991-12-16
DK146984C (da) 1984-08-13
DE2824831B2 (de) 1980-03-13
DK146984B (da) 1984-03-05
DE2824831A1 (de) 1979-01-04
CA1103312A (en) 1981-06-16
IT1096003B (it) 1985-08-17
NL7806472A (nl) 1978-12-29
SE7807163L (sv) 1978-12-28
CH614781A5 (es) 1979-12-14
DE2824831C3 (de) 1980-11-06
JPS5412794A (en) 1979-01-30
JPS629850B2 (es) 1987-03-03

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