CA1001717A - Method and apparatus for providing primary coincidence correction during particle analysis utilizing time generation techniques - Google Patents

Method and apparatus for providing primary coincidence correction during particle analysis utilizing time generation techniques

Info

Publication number
CA1001717A
CA1001717A CA211,563A CA211563A CA1001717A CA 1001717 A CA1001717 A CA 1001717A CA 211563 A CA211563 A CA 211563A CA 1001717 A CA1001717 A CA 1001717A
Authority
CA
Canada
Prior art keywords
time generation
particle analysis
correction during
generation techniques
during 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
CA211,563A
Other languages
English (en)
Other versions
CA211563S (en
Inventor
Stephen K. Campbell
Wallace H. Coulter
Millard D. Longman (Jr.)
Walter R. Hogg
Edward N. Doty
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA1001717A publication Critical patent/CA1001717A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/02—Input 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
    • 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 Radiation (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
CA211,563A 1973-10-17 1974-10-16 Method and apparatus for providing primary coincidence correction during particle analysis utilizing time generation techniques Expired CA1001717A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40723573A 1973-10-17 1973-10-17
US05/485,160 US3936741A (en) 1973-10-17 1974-07-02 Method and apparatus for providing primary coincidence correction during particle analysis utilizing time generation techniques

Publications (1)

Publication Number Publication Date
CA1001717A true CA1001717A (en) 1976-12-14

Family

ID=27019816

Family Applications (1)

Application Number Title Priority Date Filing Date
CA211,563A Expired CA1001717A (en) 1973-10-17 1974-10-16 Method and apparatus for providing primary coincidence correction during particle analysis utilizing time generation techniques

Country Status (11)

Country Link
US (1) US3936741A (he)
JP (1) JPS5068174A (he)
CA (1) CA1001717A (he)
CH (1) CH585901A5 (he)
DE (1) DE2449321A1 (he)
FR (1) FR2248653B1 (he)
GB (1) GB1481338A (he)
IL (1) IL45842A (he)
IT (1) IT1021827B (he)
NL (1) NL7413574A (he)
SE (1) SE7413012L (he)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939409A (en) * 1974-08-01 1976-02-17 Coulter Electronics, Inc. Particle study device and sample metering means used therein
US4021117A (en) * 1975-08-07 1977-05-03 Hildegard Gohde Process for automatic counting and measurement of particles
HU173092B (hu) * 1976-02-24 1979-02-28 Medicor Muevek Ehlektroskhema dlja opredelenija chisla eritrocito, srednego ob"joma tel'ca, velichini gematokrita i drugikh parametrov krovi
US4251768A (en) * 1978-09-29 1981-02-17 Hycel, Inc. Coincidence correction of hematocrit in a hematology measurement apparatus
US4253154A (en) * 1979-01-11 1981-02-24 North American Philips Corporation Line scan and X-ray map enhancement of SEM X-ray data
JPS56143918A (en) * 1980-04-10 1981-11-10 Shinko Denshi Kk Counter of number of parts
US4510438A (en) * 1982-02-16 1985-04-09 Coulter Electronics, Inc. Coincidence correction in particle analysis system
EP0100891A1 (de) * 1982-08-17 1984-02-22 Contraves Ag Verfahren und Vorrichtung zur Korrektur von Koinzidenzfehlern beim Zählen von Teilchen zweier Sorten
US4977517A (en) * 1988-09-21 1990-12-11 Toni Diagnostics, Inc. Leak and clog detection and removal system for use with particle counters
US7724150B2 (en) * 2007-09-04 2010-05-25 Venturedyne, Ltd. Environmental sensor, particle counting system having an environmental sensor, and methods of operating the same
US7895000B2 (en) * 2007-09-04 2011-02-22 Venturedyne, Ltd. Environmental sensor, particle counting system having an environmental sensor, and methods of operating the same
KR101805941B1 (ko) * 2010-03-10 2017-12-06 베크만 컬터, 인코포레이티드 입자 분석기에서의 펄스 파라미터 발생

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171892A (en) * 1961-06-27 1965-03-02 Pantle Jorge Oltvani Electronic apparatus for the observation of signals of biological origin
US3611157A (en) * 1969-06-09 1971-10-05 Us Navy Pulse width discriminator
US3600688A (en) * 1970-04-21 1971-08-17 Bethlehem Steel Corp Signal discriminator circuit

Also Published As

Publication number Publication date
IT1021827B (it) 1978-02-20
IL45842A0 (en) 1974-12-31
FR2248653A1 (he) 1975-05-16
IL45842A (he) 1976-10-31
FR2248653B1 (he) 1979-06-15
SE7413012L (he) 1975-04-18
US3936741A (en) 1976-02-03
CH585901A5 (he) 1977-03-15
DE2449321A1 (de) 1975-04-30
JPS5068174A (he) 1975-06-07
GB1481338A (en) 1977-07-27
NL7413574A (nl) 1975-04-21

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