WO2008034954A3 - A method and a device for the measurement of properties of a moving web - Google Patents

A method and a device for the measurement of properties of a moving web Download PDF

Info

Publication number
WO2008034954A3
WO2008034954A3 PCT/FI2007/050503 FI2007050503W WO2008034954A3 WO 2008034954 A3 WO2008034954 A3 WO 2008034954A3 FI 2007050503 W FI2007050503 W FI 2007050503W WO 2008034954 A3 WO2008034954 A3 WO 2008034954A3
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
properties
moving web
web
light source
Prior art date
Application number
PCT/FI2007/050503
Other languages
French (fr)
Other versions
WO2008034954A2 (en
Inventor
Tuulikki Manninen
Original Assignee
Metso Paper Inc
Tuulikki Manninen
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 Metso Paper Inc, Tuulikki Manninen filed Critical Metso Paper Inc
Publication of WO2008034954A2 publication Critical patent/WO2008034954A2/en
Publication of WO2008034954A3 publication Critical patent/WO2008034954A3/en

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
    • G01N21/8901—Optical details; Scanning details
    • 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
    • G01N21/86—Investigating moving sheets
    • 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
    • G01N21/86—Investigating moving sheets
    • G01N2021/8663—Paper, e.g. gloss, moisture content
    • G01N2021/8681—Paper fibre orientation
    • 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
    • G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
    • G01N2021/8917—Paper, also ondulated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/061—Sources
    • G01N2201/06113—Coherent sources; lasers
    • G01N2201/0612—Laser diodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/061—Sources
    • G01N2201/06126—Large diffuse sources
    • G01N2201/06133—Light tables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/06—Illumination; Optics
    • G01N2201/069—Supply of sources
    • G01N2201/0696—Pulsed
    • G01N2201/0697—Pulsed lasers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/08—Optical fibres; light guides
    • G01N2201/084—Fibres for remote transmission

Abstract

A method and a device for measuring at least one property of a moving web, wherein the web (W) is illuminated with a light source (1) and detected with a camera (2) substantially at the illuminated area. A diode laser light source is used for illuminating the web (W).
PCT/FI2007/050503 2006-09-22 2007-09-21 A method and a device for the measurement of properties of a moving web WO2008034954A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20065586 2006-09-22
FI20065586A FI20065586L (en) 2006-09-22 2006-09-22 Method and device for measuring properties of a moving web

Publications (2)

Publication Number Publication Date
WO2008034954A2 WO2008034954A2 (en) 2008-03-27
WO2008034954A3 true WO2008034954A3 (en) 2008-05-08

Family

ID=37067237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2007/050503 WO2008034954A2 (en) 2006-09-22 2007-09-21 A method and a device for the measurement of properties of a moving web

Country Status (2)

Country Link
FI (1) FI20065586L (en)
WO (1) WO2008034954A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017060046A1 (en) * 2015-10-05 2017-04-13 Andritz Ag Method and system for determining the hydraulic/mechanical loading of cellulose webs
CN109387519A (en) * 2017-08-04 2019-02-26 深圳市圆融精密电子有限公司 A kind of die cutting product visual inspection machine
FI12430U1 (en) 2019-02-04 2019-07-15 Procemex Oy Ltd Monitoring system for measuring the activity of pulp in the wet end of a paper or board machine
SE543802C2 (en) * 2019-12-20 2021-07-27 Stora Enso Oyj Method for determining film thickness, method for producing a film and device for producing a film
SE543843C2 (en) * 2019-12-20 2021-08-10 Stora Enso Oyj Method for identifying defects in a film, method and device for producing a film

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194840A (en) * 1978-02-27 1980-03-25 Serge Gracovetsky Sensor contact
EP0282414A2 (en) * 1987-03-13 1988-09-14 Measurex Corporation Chopper wheel alignment device
DE3741195A1 (en) * 1987-07-23 1989-02-02 Gebhard Birkle METHOD FOR CONTROLLING THE QUALITY OF A LARGE OBJECT, ESPECIALLY FOR DETECTING ERRORS IN TEXTILE FABRICS, AND DEVICE THEREFOR
US5237181A (en) * 1990-12-08 1993-08-17 Felix Schoeller Jr Gmbh & Co. Kg Method of inspecting a web of translucent material, especially photographic paper
US5696591A (en) * 1996-01-05 1997-12-09 Eastman Kodak Company Apparatus and method for detecting longitudinally oriented flaws in a moving web
JP2002090310A (en) * 2000-09-19 2002-03-27 Sekisui Chem Co Ltd Sheet inspection device
EP1249682A1 (en) * 2001-04-09 2002-10-16 Metso Paper Automation OY Method and arrangement for keeping measuring device clean
EP1306664A1 (en) * 2000-03-30 2003-05-02 Nippon Paper Industries Co., Ltd. Method for measuring orientation of paper fibers and apparatus for measuring orientation of paper fibers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194840A (en) * 1978-02-27 1980-03-25 Serge Gracovetsky Sensor contact
EP0282414A2 (en) * 1987-03-13 1988-09-14 Measurex Corporation Chopper wheel alignment device
DE3741195A1 (en) * 1987-07-23 1989-02-02 Gebhard Birkle METHOD FOR CONTROLLING THE QUALITY OF A LARGE OBJECT, ESPECIALLY FOR DETECTING ERRORS IN TEXTILE FABRICS, AND DEVICE THEREFOR
US5237181A (en) * 1990-12-08 1993-08-17 Felix Schoeller Jr Gmbh & Co. Kg Method of inspecting a web of translucent material, especially photographic paper
US5696591A (en) * 1996-01-05 1997-12-09 Eastman Kodak Company Apparatus and method for detecting longitudinally oriented flaws in a moving web
EP1306664A1 (en) * 2000-03-30 2003-05-02 Nippon Paper Industries Co., Ltd. Method for measuring orientation of paper fibers and apparatus for measuring orientation of paper fibers
JP2002090310A (en) * 2000-09-19 2002-03-27 Sekisui Chem Co Ltd Sheet inspection device
EP1249682A1 (en) * 2001-04-09 2002-10-16 Metso Paper Automation OY Method and arrangement for keeping measuring device clean

Also Published As

Publication number Publication date
WO2008034954A2 (en) 2008-03-27
FI20065586L (en) 2008-03-23
FI20065586A0 (en) 2006-09-22

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