CA942842A - Electronic particle detector of the coulter type having conductivity change independence circuitry - Google Patents

Electronic particle detector of the coulter type having conductivity change independence circuitry

Info

Publication number
CA942842A
CA942842A CA130,863A CA130863A CA942842A CA 942842 A CA942842 A CA 942842A CA 130863 A CA130863 A CA 130863A CA 942842 A CA942842 A CA 942842A
Authority
CA
Canada
Prior art keywords
circuitry
particle detector
conductivity change
coulter type
electronic 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
CA130,863A
Other languages
English (en)
Other versions
CA130863S (en
Inventor
Walter R. Hogg
Robert I. Klein
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 CA942842A publication Critical patent/CA942842A/en
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 Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
CA130,863A 1970-12-28 1971-12-22 Electronic particle detector of the coulter type having conductivity change independence circuitry Expired CA942842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10161470A 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
CA942842A true CA942842A (en) 1974-02-26

Family

ID=22285563

Family Applications (1)

Application Number Title Priority Date Filing Date
CA130,863A Expired CA942842A (en) 1970-12-28 1971-12-22 Electronic particle detector of the coulter type having conductivity change independence circuitry

Country Status (14)

Country Link
US (1) US3706030A (cs)
JP (1) JPS5221912B1 (cs)
AR (1) AR202998A1 (cs)
BE (1) BE777153A (cs)
CA (1) CA942842A (cs)
CH (1) CH559910A5 (cs)
ES (1) ES398264A1 (cs)
FR (1) FR2119997B1 (cs)
GB (1) GB1367528A (cs)
IL (1) IL38427A (cs)
IT (1) IT945602B (cs)
NL (1) NL154831B (cs)
SE (1) SE375617B (cs)
ZA (1) ZA718561B (cs)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2182479A5 (cs) * 1972-04-22 1973-12-07 Licentia Gmbh
US3944917A (en) * 1973-08-13 1976-03-16 Coulter Electronics, Inc. Electrical sensing circuitry for particle analyzing device
US3982182A (en) * 1973-08-13 1976-09-21 Coulter Electronics, Inc. Conductivity cell for particle study device
CH618514A5 (cs) * 1977-08-25 1980-07-31 Contraves Ag
JPH0192777U (cs) * 1987-12-14 1989-06-19

Also Published As

Publication number Publication date
AU3725671A (en) 1973-06-28
US3706030A (en) 1972-12-12
GB1367528A (en) 1974-09-18
FR2119997A1 (cs) 1972-08-11
ES398264A1 (es) 1974-08-01
CH559910A5 (cs) 1975-03-14
NL7117633A (cs) 1972-06-30
NL154831B (nl) 1977-10-17
SE375617B (cs) 1975-04-21
FR2119997B1 (cs) 1973-06-08
IL38427A0 (cs) 1972-02-29
ZA718561B (en) 1973-08-29
IL38427A (en) 1974-01-14
IT945602B (it) 1973-05-10
DE2163906A1 (de) 1972-07-20
AR202998A1 (es) 1975-08-08
BE777153A (fr) 1972-04-17
DE2163906B2 (de) 1977-06-23
JPS5221912B1 (cs) 1977-06-14

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