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FR2505050B1 - ABNORMAL PULSE DETECTOR IN A SUSPENSION PARTICLE ANALYSIS DEVICE - Google Patents

ABNORMAL PULSE DETECTOR IN A SUSPENSION PARTICLE ANALYSIS DEVICE

Info

Publication number
FR2505050B1
FR2505050B1 FR8207435A FR8207435A FR2505050B1 FR 2505050 B1 FR2505050 B1 FR 2505050B1 FR 8207435 A FR8207435 A FR 8207435A FR 8207435 A FR8207435 A FR 8207435A FR 2505050 B1 FR2505050 B1 FR 2505050B1
Authority
FR
France
Prior art keywords
analysis device
pulse detector
particle analysis
abnormal pulse
suspension particle
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
FR8207435A
Other languages
French (fr)
Other versions
FR2505050A1 (en
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.)
Filing date
Publication date
Application filed by Coulter Electronics Inc filed Critical Coulter Electronics Inc
Publication of FR2505050A1 publication Critical patent/FR2505050A1/en
Application granted granted Critical
Publication of FR2505050B1 publication Critical patent/FR2505050B1/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/0273Indicating 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)
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10Investigating individual particles
    • G01N15/1031Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12Investigating 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
    • G01N15/131Details
    • G01N15/132Circuits
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/033Indicating 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 ABNORMAL PULSE DETECTOR IN A SUSPENSION PARTICLE ANALYSIS DEVICE Expired FR2505050B1 (en)

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 (en) 1982-11-05
FR2505050B1 true FR2505050B1 (en) 1986-04-04

Family

ID=22986080

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8207435A Expired FR2505050B1 (en) 1981-04-30 1982-04-29 ABNORMAL PULSE DETECTOR IN A SUSPENSION PARTICLE ANALYSIS DEVICE

Country Status (2)

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

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 (en) * 1998-12-07 2000-06-14 Venturedyne Ltd. Particle sensor and related method offering improved particle discrimination
CN103499700B (en) * 2013-09-30 2014-12-10 深圳理邦实验生物电子有限公司 Signal effectiveness analysis method and device applied to cell analyzer
CN115931037B (en) * 2022-12-23 2024-12-17 深圳市科曼医疗设备有限公司 Particle channel hole blocking identification method, device and system, equipment and storage medium

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

Also Published As

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

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse