WO2005106436A8 - Paper surface quality testing - Google Patents

Paper surface quality testing

Info

Publication number
WO2005106436A8
WO2005106436A8 PCT/FI2005/050134 FI2005050134W WO2005106436A8 WO 2005106436 A8 WO2005106436 A8 WO 2005106436A8 FI 2005050134 W FI2005050134 W FI 2005050134W WO 2005106436 A8 WO2005106436 A8 WO 2005106436A8
Authority
WO
WIPO (PCT)
Prior art keywords
paper
surface quality
paper surface
quality testing
different angles
Prior art date
Application number
PCT/FI2005/050134
Other languages
French (fr)
Other versions
WO2005106436A1 (en
Inventor
Kari Saarinen
Karri Muinonen
Original Assignee
Abb Research Ltd
Kari Saarinen
Karri Muinonen
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 Abb Research Ltd, Kari Saarinen, Karri Muinonen filed Critical Abb Research Ltd
Publication of WO2005106436A1 publication Critical patent/WO2005106436A1/en
Publication of WO2005106436A8 publication Critical patent/WO2005106436A8/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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N2021/4704—Angular selective
    • G01N2021/4709—Backscatter
    • 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

Abstract

The invention relates to an apparatus for testing the surface quality of paper. The apparatus comprises: a light source (1) for generating a light beam (2), directing means (3) at least a part (4) of said generated beam substantially perpendicularly towards the surface of said paper (5), measuring means (7) for measuring the intensity of coherent backscattering (8) from the surface of said paper at different angles, and analyzing means (10) for analyzing the measured intensity at different angles in order to determine the surface quality of said paper.
PCT/FI2005/050134 2004-04-28 2005-04-27 Paper surface quality testing WO2005106436A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20040600A FI117834B (en) 2004-04-28 2004-04-28 Paper surface quality testing
FI20040600 2004-04-28

Publications (2)

Publication Number Publication Date
WO2005106436A1 WO2005106436A1 (en) 2005-11-10
WO2005106436A8 true WO2005106436A8 (en) 2006-01-19

Family

ID=32104234

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2005/050134 WO2005106436A1 (en) 2004-04-28 2005-04-27 Paper surface quality testing

Country Status (2)

Country Link
FI (1) FI117834B (en)
WO (1) WO2005106436A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158640B (en) * 2007-11-06 2010-06-09 山东大学 Device and method for rapid measuring coherent backscattering by linear array CCD
CN106442870A (en) * 2016-07-29 2017-02-22 维达纸业（中国）有限公司 On-line paper quality detection system and method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097751A (en) * 1976-09-24 1978-06-27 Grumman Aerospace Corporation Retroreflectance measuring apparatus
SU1383168A1 (en) * 1986-04-28 1988-03-23 Ленинградский институт текстильной и легкой промышленности им.С.М.Кирова Optical method of checking strength of sheet fibre transparent materials and process of making same
DE58907717D1 (en) * 1988-10-31 1994-06-30 Wilfried Schoeps DEVICE FOR THE SIMULTANEOUS CONTACTLESS TESTING OF A MULTIPLE NUMBER OF POINTS OF A TEST MATERIAL AND THEIR USE THEREOF.
US5063301A (en) * 1989-12-21 1991-11-05 The Standard Oil Company Noninvasive method and apparatus using coherent backscattering for process control
US5155558A (en) * 1990-09-19 1992-10-13 E. I. Du Pont De Nemours And Company Method and apparatus for analyzing the appearance features of a surface
DE19733775A1 (en) * 1997-08-05 1999-02-18 Honeywell Ag Measuring surface roughness of reflective material, e.g. paper
US6690473B1 (en) * 1999-02-01 2004-02-10 Sensys Instruments Corporation Integrated surface metrology
FI991071A0 (en) * 1999-05-10 1999-05-10 Valmet Automation Inc Procedure and measurement arrangement for measuring paper surface
DE19950588B4 (en) * 1999-10-20 2013-07-18 Byk Gardner Gmbh Apparatus and method for quality control of especially painted surfaces
JP4164430B2 (en) * 2002-10-29 2008-10-15 キヤノン株式会社 Recording medium identification apparatus, recording apparatus, and recording medium identification method

Also Published As

Publication number Publication date
WO2005106436A1 (en) 2005-11-10
FI20040600A0 (en) 2004-04-28
FI117834B (en) 2007-03-15
FI20040600A (en) 2005-10-29

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