GB1305697A - - Google Patents

Info

Publication number
GB1305697A
GB1305697A GB1434271A GB1434271A GB1305697A GB 1305697 A GB1305697 A GB 1305697A GB 1434271 A GB1434271 A GB 1434271A GB 1434271 A GB1434271 A GB 1434271A GB 1305697 A GB1305697 A GB 1305697A
Authority
GB
United Kingdom
Prior art keywords
vent
electrodes
liquid
count
aperture
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
GB1434271A
Other languages
English (en)
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 filed Critical
Publication of GB1305697A publication Critical patent/GB1305697A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
GB1434271A 1970-05-18 1971-05-11 Expired GB1305697A (OSRAM)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3803970A 1970-05-18 1970-05-18
US4198270A 1970-06-01 1970-06-01

Publications (1)

Publication Number Publication Date
GB1305697A true GB1305697A (OSRAM) 1973-02-07

Family

ID=26714788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1434271A Expired GB1305697A (OSRAM) 1970-05-18 1971-05-11

Country Status (2)

Country Link
GB (1) GB1305697A (OSRAM)
IT (1) IT965564B (OSRAM)

Also Published As

Publication number Publication date
DE2121201A1 (de) 1971-12-02
DE2121201B2 (de) 1977-04-21
IT965564B (it) 1974-02-11

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Legal Events

Date Code Title Description
PS Patent sealed