CA1285788C - Methode et dispositif pour mesurer l'anisotropie d'orientation des fibres dans un corps fibreux - Google Patents

Methode et dispositif pour mesurer l'anisotropie d'orientation des fibres dans un corps fibreux

Info

Publication number
CA1285788C
CA1285788C CA 531623 CA531623A CA1285788C CA 1285788 C CA1285788 C CA 1285788C CA 531623 CA531623 CA 531623 CA 531623 A CA531623 A CA 531623A CA 1285788 C CA1285788 C CA 1285788C
Authority
CA
Canada
Prior art keywords
fibrous structure
laser beam
coefficient
energy
measuring
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 - Fee Related
Application number
CA 531623
Other languages
English (en)
Inventor
Russell Boulay
Bernard Drouin
Richard Gagnon
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.)
Universite Laval
Original Assignee
Universite Laval
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 Universite Laval filed Critical Universite Laval
Priority to CA 531623 priority Critical patent/CA1285788C/fr
Application granted granted Critical
Publication of CA1285788C publication Critical patent/CA1285788C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21Polarisation-affecting properties
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/86Investigating moving sheets
    • G01N2021/8663Paper, e.g. gloss, moisture content
    • G01N2021/8681Paper fibre orientation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3581Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA 531623 1987-03-10 1987-03-10 Methode et dispositif pour mesurer l'anisotropie d'orientation des fibres dans un corps fibreux Expired - Fee Related CA1285788C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 531623 CA1285788C (fr) 1987-03-10 1987-03-10 Methode et dispositif pour mesurer l'anisotropie d'orientation des fibres dans un corps fibreux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 531623 CA1285788C (fr) 1987-03-10 1987-03-10 Methode et dispositif pour mesurer l'anisotropie d'orientation des fibres dans un corps fibreux

Publications (1)

Publication Number Publication Date
CA1285788C true CA1285788C (fr) 1991-07-09

Family

ID=4135134

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 531623 Expired - Fee Related CA1285788C (fr) 1987-03-10 1987-03-10 Methode et dispositif pour mesurer l'anisotropie d'orientation des fibres dans un corps fibreux

Country Status (1)

Country Link
CA (1) CA1285788C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006124315A1 (fr) * 2005-05-12 2006-11-23 Honeywell International Inc. Procede et appareil destines a mesurer une orientation de fibre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006124315A1 (fr) * 2005-05-12 2006-11-23 Honeywell International Inc. Procede et appareil destines a mesurer une orientation de fibre

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Legal Events

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