GB1271708A - Apparatus for measuring the relative proportions of different sizes of particles in an electrolytic fluid - Google Patents

Apparatus for measuring the relative proportions of different sizes of particles in an electrolytic fluid

Info

Publication number
GB1271708A
GB1271708A GB53583/69A GB5358369A GB1271708A GB 1271708 A GB1271708 A GB 1271708A GB 53583/69 A GB53583/69 A GB 53583/69A GB 5358369 A GB5358369 A GB 5358369A GB 1271708 A GB1271708 A GB 1271708A
Authority
GB
United Kingdom
Prior art keywords
particles
aperture
measuring
different sizes
relative proportions
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
GB53583/69A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB1271708A publication Critical patent/GB1271708A/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
    • G01N15/134—Devices using two or more apertures

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)

Abstract

1,271,708. Particle analysis. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Oct. 31, 1969 [Nov.2, 1968], No.53583/69. Heading G1N. In a "Coulter" type apparatus for determining the size distribution of particles in a liquid suspension, the sample liquid is injected through a capillary 12 mounted coaxially with and a short distance from the aperture 4 so that it is conveyed into the centre of the stream of electrolyte flowing through the aperture to reduce the error due to simultaneous passage of two particles, and those travelling slowly near the walls. The mouth of the aperture is preferably funnel shaped as shown, and the capillary outlet is nozzle shaped, and silicone coated.
GB53583/69A 1968-11-02 1969-10-31 Apparatus for measuring the relative proportions of different sizes of particles in an electrolytic fluid Expired GB1271708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681806512 DE1806512B2 (en) 1968-11-02 1968-11-02 DEVICE FOR CLASSIFYING PARTICLES SUSPENDED IN A TESTING LIQUID

Publications (1)

Publication Number Publication Date
GB1271708A true GB1271708A (en) 1972-04-26

Family

ID=5712119

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53583/69A Expired GB1271708A (en) 1968-11-02 1969-10-31 Apparatus for measuring the relative proportions of different sizes of particles in an electrolytic fluid

Country Status (3)

Country Link
DE (1) DE1806512B2 (en)
FR (1) FR2022453A1 (en)
GB (1) GB1271708A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319618B (en) * 1996-11-20 2000-08-23 Microbial Systems Ltd Particle sizing apparatus
US6418802B1 (en) * 1996-11-21 2002-07-16 Michael Anthony Wood Particle sizing apparatus and method of use thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2219778C3 (en) * 1972-04-22 1981-10-29 Coulter Electronics, Inc., 33010 Hialeah, Fla. Method for determining physiological properties of native blood cells and arrangement for carrying out the method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319618B (en) * 1996-11-20 2000-08-23 Microbial Systems Ltd Particle sizing apparatus
US6389912B1 (en) 1996-11-20 2002-05-21 Michael Anthony Wood Particle sizing apparatus and method of use thereof
US6418802B1 (en) * 1996-11-21 2002-07-16 Michael Anthony Wood Particle sizing apparatus and method of use thereof

Also Published As

Publication number Publication date
DE1806512B2 (en) 1971-08-12
DE1806512A1 (en) 1970-06-04
FR2022453A1 (en) 1970-07-31

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