ES2005632A6 - Un detector de sedimientos para un contador de particulas. - Google Patents
Un detector de sedimientos para un contador de particulas.Info
- Publication number
- ES2005632A6 ES2005632A6 ES8702825A ES8702825A ES2005632A6 ES 2005632 A6 ES2005632 A6 ES 2005632A6 ES 8702825 A ES8702825 A ES 8702825A ES 8702825 A ES8702825 A ES 8702825A ES 2005632 A6 ES2005632 A6 ES 2005632A6
- Authority
- ES
- Spain
- Prior art keywords
- voltage
- debris
- orifice
- particle
- comparator
- 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
Links
- 239000002245 particle Substances 0.000 abstract 4
- 230000001052 transient effect Effects 0.000 abstract 1
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
-
- 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
- G01N2015/138—Detecting blocking debris
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 Analyzing Materials By The Use Of Electric Means (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measuring Volume Flow (AREA)
Abstract
UN DETECTOR DE SEDIMENTOS (40, 42, 44, 46, 48 Y 50) PARA UN CONTADOR DE PARTICULAS (10). UNA PARTICULA (18), O UN SEDIMENTO TRANSIENTE QUE PASE A TRAVES DEL ORIFICIO DETECTOR (16) PROVOCA UN PULSO DE VOLTAJE (FIGURA 3A). CUANDO EL SEDIMENTO SE ALOJA EN O CONTRA EL ORIFICIO (16), OCURRE UNA VARIACION DE VOLTAJE CC. EL VOLTAJE EN EL ORIFICIO (16) SE ACOPLA CAPACITIVAMENTE (34) A UN AMPLIFICADOR (36) Y LA SALIDA DEL AMPLIFICADOR (36) SE SUMINISTRA A UN INTEGRADOR (40). EL VOLTAJE INTEGRADO (FIGURA 3D) SE APLICA A UN COMPARADOR (42) CON EL PROPOSITO DE SUMINISTRAR UNA SEÑAL DE SALIDA (FIGURA 3D) SIEMPRE QUE EL VOLTAJE INTEGRADO (FIGURA 3C) ULTRAPASA UN VOLTAJE DE REFERENCIA (VREF). LA SEÑAL DE SALIDA (FIGURA 3D) DEL COMPARADOR (42) SE SUMINISTRA A UN CIRCUITO DE RETARDO (44, 46) CON UN RETARDO RELACIONADO AL TIEMPO NECESARIO PARA QUE UNA PARTICULA (18) PASE A TRAVES DEL ORIFICIO (16). EN CASO QUE LA SEÑAL(FIGURA 3D) DEL COMPARADOR (42) PERMANEZCA DESPUES DEL TIEMPO DE RETARDO, UNA SEÑAL DE ALARMA DE SEDIMENTO (FIGURA 3E) SE PROVEE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/915,185 US4775833A (en) | 1986-10-03 | 1986-10-03 | Lodged debris detector for a particle analyzer |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2005632A6 true ES2005632A6 (es) | 1989-03-16 |
Family
ID=25435371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8702825A Expired ES2005632A6 (es) | 1986-10-03 | 1987-10-02 | Un detector de sedimientos para un contador de particulas. |
Country Status (11)
Country | Link |
---|---|
US (1) | US4775833A (es) |
EP (1) | EP0285657A4 (es) |
JP (1) | JPH02503351A (es) |
KR (1) | KR880701879A (es) |
CN (1) | CN1012015B (es) |
AU (1) | AU601253B2 (es) |
BR (1) | BR8707488A (es) |
CA (1) | CA1279698C (es) |
ES (1) | ES2005632A6 (es) |
NZ (1) | NZ222026A (es) |
WO (1) | WO1988002486A1 (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5675517A (en) * | 1995-04-25 | 1997-10-07 | Systemix | Fluorescence spectral overlap compensation for high speed flow cytometry systems |
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 |
US5907240A (en) * | 1997-05-12 | 1999-05-25 | Cdc Technologies, Inc. | Method and apparatus for cell differentiation by measuring apparent cell size, membrane integrity and intracellular complexity |
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 |
US8146407B2 (en) * | 2008-06-20 | 2012-04-03 | Beckman Coulter, Inc. | Particle counter with electronic detection of aperture blockage |
JP5083287B2 (ja) * | 2009-09-11 | 2012-11-28 | セイコーエプソン株式会社 | 検出装置、物理量測定装置及び電子機器 |
US9768137B2 (en) | 2012-04-30 | 2017-09-19 | Taiwan Semiconductor Manufacturing Company, Ltd. | Stud bump structure for semiconductor package assemblies |
WO2014164564A1 (en) | 2013-03-12 | 2014-10-09 | Novelis Inc. | Methods of and apparatus for determining particle inclusion and size in molten metal |
US9389164B2 (en) | 2013-03-12 | 2016-07-12 | Novelis Inc. | Methods of and apparatus for measuring metal cleanliness |
CN104515725B (zh) * | 2013-09-30 | 2017-08-22 | 深圳迈瑞生物医疗电子股份有限公司 | 一种识别异常粒子的方法和系统及其细胞分析仪 |
FR3034520B1 (fr) | 2015-04-02 | 2020-02-14 | Horiba Abx Sas | Dispositif de comptage de particules |
FR3058524B1 (fr) * | 2016-11-07 | 2019-01-25 | Institut National De La Sante Et De La Recherche Medicale | Procede de caracterisation d'un echantillon sanguin |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3259842A (en) * | 1959-08-19 | 1966-07-05 | Coulter Electronics | Particle analyzing device |
US3259891A (en) * | 1964-05-01 | 1966-07-05 | Coulter Electronics | Debris alarm |
US3668531A (en) * | 1966-02-23 | 1972-06-06 | Coulter Electronics | Pulse analyzing apparatus |
CH566008A5 (es) * | 1973-12-14 | 1975-08-29 | Secheron Atel | |
US3938038A (en) * | 1974-07-01 | 1976-02-10 | Coulter Electronics, Inc. | Method and apparatus for providing primary coincidence correction during particle analysis |
US3987391A (en) * | 1974-12-02 | 1976-10-19 | Coulter Electronics, Inc. | Method and apparatus for correcting total particle volume error due to particle coincidence |
DE2929272A1 (de) * | 1979-07-19 | 1981-02-12 | Siemens Ag | Ueberwachungseinrichtung fuer die spannungsbelastung eines kondensators |
US4412175A (en) * | 1981-04-30 | 1983-10-25 | Coulter Electronics, Inc. | Debris alarm |
JPS5921220A (ja) * | 1982-07-24 | 1984-02-03 | 三菱電機株式会社 | 過電圧保護継電装置 |
US4558310A (en) * | 1982-09-29 | 1985-12-10 | Mcallise Raymond J | Current sensing device and monitor |
JPS61124850A (ja) * | 1984-11-21 | 1986-06-12 | Eruma Kogaku Kk | 超純水の不純物測定装置 |
-
1986
- 1986-10-03 US US06/915,185 patent/US4775833A/en not_active Expired - Lifetime
-
1987
- 1987-09-28 CA CA000548006A patent/CA1279698C/en not_active Expired - Fee Related
- 1987-09-30 CN CN87106641A patent/CN1012015B/zh not_active Expired
- 1987-10-02 BR BR8707488A patent/BR8707488A/pt unknown
- 1987-10-02 EP EP19870907692 patent/EP0285657A4/en not_active Withdrawn
- 1987-10-02 NZ NZ222026A patent/NZ222026A/xx unknown
- 1987-10-02 WO PCT/US1987/002537 patent/WO1988002486A1/en not_active Application Discontinuation
- 1987-10-02 JP JP62507120A patent/JPH02503351A/ja active Granted
- 1987-10-02 ES ES8702825A patent/ES2005632A6/es not_active Expired
- 1987-10-02 AU AU83253/87A patent/AU601253B2/en not_active Ceased
-
1988
- 1988-06-03 KR KR1019880700626A patent/KR880701879A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US4775833A (en) | 1988-10-04 |
EP0285657A1 (en) | 1988-10-12 |
WO1988002486A1 (en) | 1988-04-07 |
NZ222026A (en) | 1990-03-27 |
CN87106641A (zh) | 1988-06-22 |
CN1012015B (zh) | 1991-03-13 |
AU601253B2 (en) | 1990-09-06 |
AU8325387A (en) | 1988-04-21 |
JPH0358660B2 (es) | 1991-09-06 |
KR880701879A (ko) | 1988-11-05 |
EP0285657A4 (en) | 1990-01-08 |
CA1279698C (en) | 1991-01-29 |
BR8707488A (pt) | 1988-12-06 |
JPH02503351A (ja) | 1990-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2007-10-02 |