CA1176839A - Length measuring instrument for paper fibres - Google Patents

Length measuring instrument for paper fibres

Info

Publication number
CA1176839A
CA1176839A CA000410147A CA410147A CA1176839A CA 1176839 A CA1176839 A CA 1176839A CA 000410147 A CA000410147 A CA 000410147A CA 410147 A CA410147 A CA 410147A CA 1176839 A CA1176839 A CA 1176839A
Authority
CA
Canada
Prior art keywords
capillary tube
fibre
measuring instrument
length measuring
fibres
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
CA000410147A
Other languages
English (en)
French (fr)
Inventor
Tapio Makkonen
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.)
Kajaani Oy
Original Assignee
Kajaani Oy
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 Kajaani Oy filed Critical Kajaani Oy
Application granted granted Critical
Publication of CA1176839A publication Critical patent/CA1176839A/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
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/34—Paper
    • G01N33/343—Paper pulp
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • 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
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA000410147A 1981-08-26 1982-08-25 Length measuring instrument for paper fibres Expired CA1176839A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI812627A FI812627L (fi) 1981-08-26 1981-08-26 Laengdmaetare foer pappersfiber
FI812627 1981-08-26

Publications (1)

Publication Number Publication Date
CA1176839A true CA1176839A (en) 1984-10-30

Family

ID=8514655

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000410147A Expired CA1176839A (en) 1981-08-26 1982-08-25 Length measuring instrument for paper fibres

Country Status (6)

Country Link
JP (1) JPS5852505A (enrdf_load_stackoverflow)
CA (1) CA1176839A (enrdf_load_stackoverflow)
DE (1) DE3230523A1 (enrdf_load_stackoverflow)
FI (1) FI812627L (enrdf_load_stackoverflow)
FR (1) FR2512196A1 (enrdf_load_stackoverflow)
SE (1) SE8204869L (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837446A (en) * 1988-03-31 1989-06-06 International Paper Company Apparatus and process for testing uniformity of pulp
US5311290A (en) * 1992-09-30 1994-05-10 Pulp And Paper Research Institute Of Canada Imaging apparatus and method of fiber analysis

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114445A (ja) * 1982-12-21 1984-07-02 Yamamura Glass Kk 透明体の欠陥検出装置
JPS60231136A (ja) * 1984-05-01 1985-11-16 Kanzaki Paper Mfg Co Ltd 紙類の繊維配向測定方法
DE3502406C2 (de) * 1985-01-22 1987-04-23 Dr. Peter + Steinwender Technische Geräte GmbH, 8176 Waakirchen Verfahren und Einrichtung zur kontinuierlichen, berührungslosen Bestimmung der Länge eines ungeteilten, bewegten Körpers
DE4118716A1 (de) * 1990-07-16 1992-01-23 Gerhart Schroff Verfahren und anordnung zur optischen erfassung und auswertung von streulichtsignalen
FR2681693A1 (fr) * 1991-09-24 1993-03-26 Barrat Bertrand Dispositif d'analyse dimensionnelle de particules positionnees dans un plan.
US5293219A (en) * 1991-12-31 1994-03-08 Andritz Sprout-Bauer, Inc. Fiber length analyzer
EP1047917B1 (de) 1998-01-22 2005-11-16 Maschinenfabrik Rieter Ag Verfahren und vorrichtung zur faserlängenmessung
DE19802315A1 (de) * 1998-01-22 1999-07-29 Rieter Ag Maschf Verfahren und Vorrichtung zur Faserlängenmessung
AU2003901910A0 (en) * 2003-04-17 2003-05-08 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for testing fibres
AU2004231118B2 (en) * 2003-04-17 2009-09-17 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for testing fibres
US8120769B2 (en) 2007-08-03 2012-02-21 North Carolina State University Method and system for fiber properties measurement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837446A (en) * 1988-03-31 1989-06-06 International Paper Company Apparatus and process for testing uniformity of pulp
US5311290A (en) * 1992-09-30 1994-05-10 Pulp And Paper Research Institute Of Canada Imaging apparatus and method of fiber analysis

Also Published As

Publication number Publication date
FR2512196A1 (fr) 1983-03-04
FI812627A7 (fi) 1983-02-27
JPS5852505A (ja) 1983-03-28
FI812627L (fi) 1983-02-27
SE8204869L (sv) 1983-02-27
FR2512196B3 (enrdf_load_stackoverflow) 1984-10-26
DE3230523A1 (de) 1983-03-17
SE8204869D0 (sv) 1982-08-25

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry