ES396366A1 - Metodo y su correspondiente aparato detector para detectar los impulsos producidos por particulas. - Google Patents

Metodo y su correspondiente aparato detector para detectar los impulsos producidos por particulas.

Info

Publication number
ES396366A1
ES396366A1 ES396366A ES396366A ES396366A1 ES 396366 A1 ES396366 A1 ES 396366A1 ES 396366 A ES396366 A ES 396366A ES 396366 A ES396366 A ES 396366A ES 396366 A1 ES396366 A1 ES 396366A1
Authority
ES
Spain
Prior art keywords
duration
pulses
pulse
gating means
sensor
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
ES396366A
Other languages
English (en)
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 Ltd
Coulter Electronics Inc
Original Assignee
Coulter Electronics Ltd
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 Ltd, Coulter Electronics Inc filed Critical Coulter Electronics Ltd
Publication of ES396366A1 publication Critical patent/ES396366A1/es
Expired legal-status Critical Current

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)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
ES396366A 1970-10-27 1971-10-25 Metodo y su correspondiente aparato detector para detectar los impulsos producidos por particulas. Expired ES396366A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8444070A 1970-10-27 1970-10-27

Publications (1)

Publication Number Publication Date
ES396366A1 true ES396366A1 (es) 1975-02-01

Family

ID=22184987

Family Applications (1)

Application Number Title Priority Date Filing Date
ES396366A Expired ES396366A1 (es) 1970-10-27 1971-10-25 Metodo y su correspondiente aparato detector para detectar los impulsos producidos por particulas.

Country Status (6)

Country Link
US (1) US3701029A (es)
AR (1) AR196063A1 (es)
BR (1) BR7107084D0 (es)
ES (1) ES396366A1 (es)
IL (1) IL38000A (es)
ZA (1) ZA717123B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781674A (en) * 1971-07-22 1973-12-25 Coulter Electronics Noise discriminating circuitry and method for electronic particle study apparatus
DE2163722A1 (de) * 1971-12-22 1973-06-28 Licentia Gmbh Verfahren fuer die impulshoehenbestimmung
DE2207315A1 (de) * 1972-02-17 1973-08-23 Bodenseewerk Perkin Elmer Co Peakdetektor
US3790883A (en) * 1972-05-09 1974-02-05 Coulter Electronics Particle study apparatus having improved particle resolution means
US3963983A (en) * 1973-04-18 1976-06-15 Coulter Electronics, Inc. Pulse amplitude discriminating circuit
US3961271A (en) * 1975-02-07 1976-06-01 International Telephone And Telegraph Corporation Pulse width and amplitude screening circuit
US4030010A (en) * 1975-02-13 1977-06-14 Multiplex Communications, Inc. Time delay control circuit
US4016486A (en) * 1976-02-19 1977-04-05 The United States Of America As Represented By The Secretary Of The Army Land mine detector with pulse slope, width and amplitude determination channels
US4263508A (en) * 1979-04-20 1981-04-21 Research Corporation Pulse edge measurement for determining particle dimensional characteristics
US4527114A (en) * 1982-02-25 1985-07-02 Coulter Electronics, Inc. Electrical slit scanning apparatus
US6111398A (en) * 1997-07-03 2000-08-29 Coulter International Corp. Method and apparatus for sensing and characterizing particles
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

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996624A (en) * 1959-08-11 1961-08-15 Victor R Mumma Method for stretching photometer pulses for accurate measurement of pulse height
US3502973A (en) * 1966-05-23 1970-03-24 Coulter Electronics Collating apparatus for pairs of electrical pulses produced by particle analyzing apparatus
US3557352A (en) * 1967-11-01 1971-01-19 Coulter Electronics Apparatus and method for measuring a dividing particle size of a particulate system
US3553593A (en) * 1968-01-10 1971-01-05 Westinghouse Electric Corp Pulse width measuring circuit
US3548206A (en) * 1969-01-14 1970-12-15 Royco Instr Inc Noise rejection circuits for particle counters
US3600688A (en) * 1970-04-21 1971-08-17 Bethlehem Steel Corp Signal discriminator circuit

Also Published As

Publication number Publication date
AR196063A1 (es) 1973-11-30
BR7107084D0 (pt) 1973-04-10
IL38000A (en) 1974-07-31
US3701029A (en) 1972-10-24
ZA717123B (en) 1973-06-27

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