SE8403402L - Forfarande och anordning for observering av strimmor i maskinriktnilngen i papper eller dess beleggning - Google Patents

Forfarande och anordning for observering av strimmor i maskinriktnilngen i papper eller dess beleggning

Info

Publication number
SE8403402L
SE8403402L SE8403402A SE8403402A SE8403402L SE 8403402 L SE8403402 L SE 8403402L SE 8403402 A SE8403402 A SE 8403402A SE 8403402 A SE8403402 A SE 8403402A SE 8403402 L SE8403402 L SE 8403402L
Authority
SE
Sweden
Prior art keywords
paper
coating
web
machine direction
light
Prior art date
Application number
SE8403402A
Other languages
Unknown language ( )
English (en)
Other versions
SE8403402D0 (sv
Inventor
P Puumalainen
Original Assignee
Enso Gutzeit 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 Enso Gutzeit Oy filed Critical Enso Gutzeit Oy
Publication of SE8403402D0 publication Critical patent/SE8403402D0/sv
Publication of SE8403402L publication Critical patent/SE8403402L/sv

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/06—Indicating or regulating the thickness of the layer; Signal devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/8921—Streaks

Landscapes

  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Paper (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
SE8403402A 1983-06-28 1984-06-27 Forfarande och anordning for observering av strimmor i maskinriktnilngen i papper eller dess beleggning SE8403402L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI832347A FI67448C (fi) 1983-06-28 1983-06-28 Foerfarande och anordning foer detektering av strimmor i maskinriktningen hos papper

Publications (2)

Publication Number Publication Date
SE8403402D0 SE8403402D0 (sv) 1984-06-27
SE8403402L true SE8403402L (sv) 1984-12-29

Family

ID=8517423

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8403402A SE8403402L (sv) 1983-06-28 1984-06-27 Forfarande och anordning for observering av strimmor i maskinriktnilngen i papper eller dess beleggning

Country Status (6)

Country Link
US (1) US4595840A (sv)
JP (1) JPS6057242A (sv)
DE (1) DE3423720A1 (sv)
FI (1) FI67448C (sv)
GB (1) GB2144218B (sv)
SE (1) SE8403402L (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734294A1 (de) * 1987-10-09 1989-04-27 Sick Optik Elektronik Erwin Optische oberflaechen-inspektionsvorrichtung
DE3800053A1 (de) * 1988-01-04 1989-07-13 Sick Optik Elektronik Erwin Optische fehlerinspektionsvorrichtung
DE3806382A1 (de) * 1988-02-29 1989-09-07 Feldmuehle Ag Verfahren und vorrichtung zum pruefen von laufenden transparenten bahnen
DE3806384A1 (de) * 1988-02-29 1989-09-07 Feldmuehle Ag Verfahren und vorrichtung zum pruefen von laufenden transparenten bahnen
US5668887A (en) * 1992-05-29 1997-09-16 Eastman Kodak Company Coating density analyzer and method using non-synchronous TDI camera
DE19543289A1 (de) * 1995-11-21 1996-05-09 Werner Grose Verfahren und Vorrichtung zur opto-dynamischen Oberflächenspannungsmessung an laufenden Substraten
DE19607793A1 (de) * 1996-03-01 1997-09-04 Basf Magnetics Gmbh Optische Oberflächenprüfeinrichtung für linear bewegte, bandförmige Materialien
DE19700281A1 (de) * 1997-01-07 1998-07-09 Sick Ag Optischer Codeleser mit einer optischen Abtastvorrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE573002A (sv) * 1957-11-15
CH502596A (de) * 1967-11-15 1971-01-31 Bayer Ag Vorrichtung zum Feststellen von Streifen auf einer laufenden Bahn bei der Herstellung von Fotopapieren und -filmen
GB1320898A (en) * 1969-07-07 1973-06-20 British Steel Corp Strip measuring unit and split edge detector
US3754146A (en) * 1972-03-27 1973-08-21 Du Pont Apparatus and method for detecting streaks in coated layers on a web
GB1437951A (en) * 1972-05-12 1976-06-03 Nash P Apparatus for detercting blemishes in sheet material
GB2025037A (en) * 1978-06-26 1980-01-16 Agfa Gevaert Nv Photoelectric detection of flaws in sheets
US4338032A (en) * 1979-05-18 1982-07-06 Spencer Wright Industries, Inc. Detection of faults in sheet and like materials
DE3006072C2 (de) * 1980-02-19 1984-11-29 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Fehlstellenermittlungsvorrichtung für Materialbahnen
US4455086A (en) * 1982-02-09 1984-06-19 Sira Institute Limited Optical test apparatus for examining an object

Also Published As

Publication number Publication date
FI67448B (fi) 1984-11-30
DE3423720A1 (de) 1985-01-10
JPS6057242A (ja) 1985-04-03
GB8416464D0 (en) 1984-08-01
SE8403402D0 (sv) 1984-06-27
US4595840A (en) 1986-06-17
FI67448C (fi) 1985-03-11
FI832347A0 (fi) 1983-06-28
GB2144218B (en) 1987-02-11
GB2144218A (en) 1985-02-27

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NAV Patent application has lapsed

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Effective date: 19881126