FR2298793A1 - Cellule de conductibilite pour un dispositif d'etude de particules - Google Patents

Cellule de conductibilite pour un dispositif d'etude de particules

Info

Publication number
FR2298793A1
FR2298793A1 FR7601279A FR7601279A FR2298793A1 FR 2298793 A1 FR2298793 A1 FR 2298793A1 FR 7601279 A FR7601279 A FR 7601279A FR 7601279 A FR7601279 A FR 7601279A FR 2298793 A1 FR2298793 A1 FR 2298793A1
Authority
FR
France
Prior art keywords
direct proportion
resistance variations
conductivity cell
electrolyte resistance
amplified voltages
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.)
Granted
Application number
FR7601279A
Other languages
English (en)
French (fr)
Other versions
FR2298793B3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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
Priority claimed from US05/543,011 external-priority patent/US3982182A/en
Application filed by Individual filed Critical Individual
Publication of FR2298793A1 publication Critical patent/FR2298793A1/fr
Application granted granted Critical
Publication of FR2298793B3 publication Critical patent/FR2298793B3/fr
Granted 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
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/22—Measuring resistance of fluids

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
FR7601279A 1975-01-21 1976-01-19 Cellule de conductibilite pour un dispositif d'etude de particules Granted FR2298793A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/543,011 US3982182A (en) 1973-08-13 1975-01-21 Conductivity cell for particle study device

Publications (2)

Publication Number Publication Date
FR2298793A1 true FR2298793A1 (fr) 1976-08-20
FR2298793B3 FR2298793B3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-10-13

Family

ID=24166220

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601279A Granted FR2298793A1 (fr) 1975-01-21 1976-01-19 Cellule de conductibilite pour un dispositif d'etude de particules

Country Status (3)

Country Link
JP (1) JPS5197482A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2601729A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2298793A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPS5197482A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-08-27
FR2298793B3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1978-10-13
DE2601729A1 (de) 1976-07-22

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