CS449387A1 - Conducting sensor for measuring lenght and number of fibres in water suspension - Google Patents

Conducting sensor for measuring lenght and number of fibres in water suspension

Info

Publication number
CS449387A1
CS449387A1 CS874493A CS449387A CS449387A1 CS 449387 A1 CS449387 A1 CS 449387A1 CS 874493 A CS874493 A CS 874493A CS 449387 A CS449387 A CS 449387A CS 449387 A1 CS449387 A1 CS 449387A1
Authority
CS
Czechoslovakia
Prior art keywords
lenght
fibres
measuring
water suspension
conducting sensor
Prior art date
Application number
CS874493A
Other languages
English (en)
Other versions
CS272965B1 (en
Inventor
Rudolf Ing Butas
Original Assignee
Rudolf Ing Butas
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 Rudolf Ing Butas filed Critical Rudolf Ing Butas
Priority to CS449387A priority Critical patent/CS272965B1/cs
Priority to CA000566895A priority patent/CA1285023C/en
Priority to FI882551A priority patent/FI882551A7/fi
Priority to SE8802286A priority patent/SE8802286L/
Priority to US07/210,680 priority patent/US4906936A/en
Publication of CS449387A1 publication Critical patent/CS449387A1/cs
Publication of CS272965B1 publication Critical patent/CS272965B1/cs

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
    • G01N15/13—Details pertaining to apertures
    • 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
    • G01N2015/0042—Investigating dispersion of solids
    • G01N2015/0053—Investigating dispersion of solids in liquids, e.g. trouble
    • G01N2015/0057—Investigating dispersion of solids in liquids, e.g. trouble of filaments in liquids
    • 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
    • G01N2015/135—Electrodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
CS449387A 1987-06-18 1987-06-18 Conducting sensor for measuring lenght and number of fibres in water suspension CS272965B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CS449387A CS272965B1 (en) 1987-06-18 1987-06-18 Conducting sensor for measuring lenght and number of fibres in water suspension
CA000566895A CA1285023C (en) 1987-06-18 1988-05-16 Electric conductivity sensor for measuring the length and number of fibers inan aqueous suspension
FI882551A FI882551A7 (fi) 1987-06-18 1988-05-31 Registreringsanordning foer elektrisk konduktivitet foer maetning av laengden och maengden av fibrer i en vattenhaltig suspension.
SE8802286A SE8802286L (sv) 1987-06-18 1988-06-17 Avkaenningsanordning foer elektrisk konduktans foer maetning av antal och laegdhos i en vattensuspension
US07/210,680 US4906936A (en) 1987-06-18 1988-06-17 Electric conductivity sensor for measuring the length and number of fibers in an aqueous suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS449387A CS272965B1 (en) 1987-06-18 1987-06-18 Conducting sensor for measuring lenght and number of fibres in water suspension

Publications (2)

Publication Number Publication Date
CS449387A1 true CS449387A1 (en) 1990-07-12
CS272965B1 CS272965B1 (en) 1991-02-12

Family

ID=5387800

Family Applications (1)

Application Number Title Priority Date Filing Date
CS449387A CS272965B1 (en) 1987-06-18 1987-06-18 Conducting sensor for measuring lenght and number of fibres in water suspension

Country Status (5)

Country Link
US (1) US4906936A (cs)
CA (1) CA1285023C (cs)
CS (1) CS272965B1 (cs)
FI (1) FI882551A7 (cs)
SE (1) SE8802286L (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240398B (en) * 1990-01-22 1994-04-06 Ecc Int Ltd Aspect ratio measurement
GB2274337B (en) * 1993-01-18 1996-08-07 Ecc Int Ltd Aspect ratio measurement
GB9701457D0 (en) * 1997-01-24 1997-03-12 Pa Consulting Services Method and apparatus for counting and/or sizing particles in suspension
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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1977607U (de) * 1961-11-20 1968-01-25 Toa Tokushu Denki Kabushiki Ka Messgefaess fuer eine einrichtung zum zaehlen von suspendierten teilchen.
GB1220214A (en) * 1966-10-04 1971-01-20 Nat Res Dev Improvements in or relating to sorting fibrous material
SU527640A1 (ru) * 1974-09-23 1976-09-05 Украинский научно-исследовательский институт целлюлозно-бумажной промышленности Анализатор длины волокон в суспензии
US4220499A (en) * 1978-10-04 1980-09-02 Westvaco Corporation Method for determining the relative quantity of shives in a stream of fibrous particles
US4284496A (en) * 1979-12-10 1981-08-18 Newton William A Particle guiding apparatus and method
US4390842A (en) * 1980-12-23 1983-06-28 Marathon Oil Company Fluid conductivity device for measuring fluid volumes and method therefor
SU1203424A1 (ru) * 1984-01-04 1986-01-07 Морской гидрофизический институт АН УССР Устройство дл измерени электропроводности жидкости

Also Published As

Publication number Publication date
CS272965B1 (en) 1991-02-12
CA1285023C (en) 1991-06-18
FI882551A7 (fi) 1988-12-19
US4906936A (en) 1990-03-06
SE8802286D0 (sv) 1988-06-17
SE8802286L (sv) 1988-12-19
FI882551A0 (fi) 1988-05-31

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