FR2505050B1 - Detecteur d'impulsions anormales dans un dispositif d'analyse de particules en suspension - Google Patents

Detecteur d'impulsions anormales dans un dispositif d'analyse de particules en suspension

Info

Publication number: FR2505050B1
Authority: FR; France
Prior art keywords: analysis device; pulse detector; particle analysis; abnormal pulse; suspension particle
Prior art date: 1981-04-30
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

FR8207435A

Other languages

English (en)

Other versions

FR2505050A1 (fr

Inventor

Franklin David Maynarez

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.)

Coulter Electronics Inc

Original Assignee

Coulter Electronics Inc

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.)

1981-04-30

Filing date

1982-04-29

Publication date

1986-04-04

1982-04-29 Application filed by Coulter Electronics Inc filed Critical Coulter Electronics Inc

1982-11-05 Publication of FR2505050A1 publication Critical patent/FR2505050A1/fr

1986-04-04 Application granted granted Critical

1986-04-04 Publication of FR2505050B1 publication Critical patent/FR2505050B1/fr

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
- G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
- G01R29/0273—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values the pulse characteristic being duration, i.e. width (indicating that frequency of pulses is above or below a certain limit)
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
- G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
- G01R29/033—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values giving an indication of the number of times this occurs, i.e. multi-channel analysers (the characteristic being frequency)

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Dispersion Chemistry (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Analytical Chemistry (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
Immunology (AREA)
Pathology (AREA)
Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Manipulation Of Pulses (AREA)

FR8207435A 1981-04-30 1982-04-29 Detecteur d'impulsions anormales dans un dispositif d'analyse de particules en suspension Expired FR2505050B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US25971781A	1981-04-30	1981-04-30

Publications (2)

Publication Number	Publication Date
FR2505050A1 FR2505050A1 (fr)	1982-11-05
FR2505050B1 true FR2505050B1 (fr)	1986-04-04

Family

ID=22986080

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8207435A Expired FR2505050B1 (fr)	1981-04-30	1982-04-29	Detecteur d'impulsions anormales dans un dispositif d'analyse de particules en suspension

Country Status (2)

Country	Link
JP (1)	JPS57186150A (fr)
FR (1)	FR2505050B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5870190A (en) *	1997-11-25	1999-02-09	Venturedyne, Ltd.	Particle sensor and related method offering improved particle discrimination
EP1008843A1 (fr) *	1998-12-07	2000-06-14	Venturedyne Ltd.	Capteur de particules et procédé offrant une discrimination de particules supérieure
CN103499700B (zh) *	2013-09-30	2014-12-10	深圳理邦实验生物电子有限公司	一种应用于细胞分析仪的信号有效性分析方法及其装置
CN115931037B (zh) *	2022-12-23	2024-12-17	深圳市科曼医疗设备有限公司	粒子通道的堵孔识别方法、装置及系统、设备及存储介质

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3122647A (en) *	1960-08-29	1964-02-25	Rca Corp	Pulse length discriminator utilizing two gating circuits
US3735271A (en) *	1971-10-22	1973-05-22	Us Navy	Pulse width coded signal detector
US4240029A (en) *	1979-04-20	1980-12-16	Becton Dickinson & Company	Apparatus for counting particles in a liquid suspension

1982
- 1982-04-28 JP JP57072524A patent/JPS57186150A/ja active Pending
- 1982-04-29 FR FR8207435A patent/FR2505050B1/fr not_active Expired

Also Published As

Publication number	Publication date
FR2505050A1 (fr)	1982-11-05
JPS57186150A (en)	1982-11-16

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Legal Events

Date	Code	Title	Description
1985-07-12	CL	Concession to grant licences
1989-02-24	ST	Notification of lapse