FR2401417A1 - Procede et circuit pour la production d'impulsions de mesure dans un analyseur de particules - Google Patents
Procede et circuit pour la production d'impulsions de mesure dans un analyseur de particulesInfo
- Publication number
- FR2401417A1 FR2401417A1 FR7822022A FR7822022A FR2401417A1 FR 2401417 A1 FR2401417 A1 FR 2401417A1 FR 7822022 A FR7822022 A FR 7822022A FR 7822022 A FR7822022 A FR 7822022A FR 2401417 A1 FR2401417 A1 FR 2401417A1
- Authority
- FR
- France
- Prior art keywords
- circuit
- particle analyzer
- measurement pulses
- generation
- measurement
- 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.)
- Withdrawn
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)
- Measurement Of Resistance Or Impedance (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1039077A CH618514A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-08-25 | 1977-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2401417A1 true FR2401417A1 (fr) | 1979-03-23 |
Family
ID=4362709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7822022A Withdrawn FR2401417A1 (fr) | 1977-08-25 | 1978-07-25 | Procede et circuit pour la production d'impulsions de mesure dans un analyseur de particules |
Country Status (14)
Families Citing this family (5)
| 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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 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 (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB391797A (en) | 1931-11-03 | 1933-05-03 | Harold Wilson Pook | Improvements in electrical delay actions or circuits depending upon the operation oflight-sensitive devices |
| GB976622A (en) | 1960-03-22 | 1964-12-02 | Babcock & Wilcox Ltd | Improvements in flame monitoring apparatus |
| DE1698203B2 (de) | 1961-04-06 | 1973-04-19 | Amplitudendiskriminator fuer ein teilchenanalysiergeraet | |
| GB980206A (en) | 1961-09-20 | 1965-01-13 | Coulter Electronics | Improvements in and relating to apparatus for studying the physical properties of particles |
| GB1093461A (en) | 1964-02-28 | 1967-12-06 | Coulter Electronics | Device for counting particles of determined minimum length |
| US3259891A (en) | 1964-05-01 | 1966-07-05 | Coulter Electronics | Debris alarm |
| US3389335A (en) | 1964-10-19 | 1968-06-18 | Coulter Electronics | Automatic control structure for particle study apparatus |
| GB1273172A (en) | 1969-08-08 | 1972-05-03 | Coulter Electronics | Particle studying apparatus |
| 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 |
| GB1336503A (en) | 1971-01-13 | 1973-11-07 | Reiners Verwaltungs Gmbh | Electrical circuit |
| 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. |
| 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 |
-
1977
- 1977-08-25 CH CH1039077A patent/CH618514A5/de not_active IP Right Cessation
-
1978
- 1978-06-06 DE DE2824852A patent/DE2824852C3/de not_active Expired
- 1978-06-12 BE BE188503A patent/BE868040A/xx unknown
- 1978-06-29 SU SU782631654A patent/SU733524A3/ru active
- 1978-07-12 US US05/923,915 patent/US4277743A/en not_active Expired - Lifetime
- 1978-07-18 CA CA307,613A patent/CA1102878A/en not_active Expired
- 1978-07-18 ES ES471838A patent/ES471838A1/es not_active Expired
- 1978-07-25 SE SE7808120A patent/SE7808120L/xx unknown
- 1978-07-25 FR FR7822022A patent/FR2401417A1/fr not_active Withdrawn
- 1978-08-02 DK DK342578A patent/DK342578A/da unknown
- 1978-08-22 GB GB7834123A patent/GB2003279B/en not_active Expired
- 1978-08-22 IT IT26915/78A patent/IT1098137B/it active
- 1978-08-24 NL NL7808723A patent/NL7808723A/xx not_active Application Discontinuation
- 1978-08-24 JP JP10240478A patent/JPS5446092A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA1102878A (en) | 1981-06-09 |
| GB2003279B (en) | 1982-03-03 |
| IT7826915A0 (it) | 1978-08-22 |
| JPS5446092A (en) | 1979-04-11 |
| GB2003279A (en) | 1979-03-07 |
| US4277743A (en) | 1981-07-07 |
| BE868040A (fr) | 1978-10-02 |
| NL7808723A (nl) | 1979-02-27 |
| SU733524A3 (ru) | 1980-05-05 |
| IT1098137B (it) | 1985-09-07 |
| DE2824852C3 (de) | 1980-08-21 |
| DE2824852B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-12-13 |
| ES471838A1 (es) | 1979-02-01 |
| CH618514A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-07-31 |
| SE7808120L (sv) | 1979-02-26 |
| DE2824852A1 (de) | 1979-03-08 |
| DK342578A (da) | 1979-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |