CA2547788C - Circularly polarized light method and device for determining wall thickness and orientations of fibrils of cellulosic fibres - Google Patents

Circularly polarized light method and device for determining wall thickness and orientations of fibrils of cellulosic fibres Download PDF

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Publication number
CA2547788C
CA2547788C CA2547788A CA2547788A CA2547788C CA 2547788 C CA2547788 C CA 2547788C CA 2547788 A CA2547788 A CA 2547788A CA 2547788 A CA2547788 A CA 2547788A CA 2547788 C CA2547788 C CA 2547788C
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CA
Canada
Prior art keywords
fibre
specimen
fibres
polarized light
circularly polarized
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Expired - Lifetime
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CA2547788A
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English (en)
French (fr)
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CA2547788A1 (en
Inventor
Ho Fan Jang
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FPInnovations
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FPInnovations
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Publication of CA2547788A1 publication Critical patent/CA2547788A1/en
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    • 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
    • G01N21/23—Bi-refringence
    • 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
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
    • G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
    • G01B11/0641—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating with measurement of polarization
    • 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
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • 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
    • G01N33/46—Wood
    • 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
    • G01N2021/216—Polarisation-affecting properties using circular polarised light
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Wood Science & Technology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CA2547788A 2003-12-03 2004-11-25 Circularly polarized light method and device for determining wall thickness and orientations of fibrils of cellulosic fibres Expired - Lifetime CA2547788C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US52628003P 2003-12-03 2003-12-03
US60/526,280 2003-12-03
PCT/CA2004/002033 WO2005054825A1 (en) 2003-12-03 2004-11-25 Circularly polarized light method and device for determining wall thickness and orientations of fibrils of cellulosic fibres

Publications (2)

Publication Number Publication Date
CA2547788A1 CA2547788A1 (en) 2005-06-16
CA2547788C true CA2547788C (en) 2011-10-11

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CA2547788A Expired - Lifetime CA2547788C (en) 2003-12-03 2004-11-25 Circularly polarized light method and device for determining wall thickness and orientations of fibrils of cellulosic fibres

Country Status (6)

Country Link
US (1) US7289210B2 (https=)
EP (1) EP1706725B1 (https=)
JP (1) JP4653112B2 (https=)
BR (1) BRPI0417255B1 (https=)
CA (1) CA2547788C (https=)
WO (1) WO2005054825A1 (https=)

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FI20060959A0 (fi) * 2006-11-01 2006-11-01 Chun Ye Menetelmä ja kokoonpano kierrätysmassan ja massan analysoimiseksi
WO2008110017A1 (en) * 2007-03-15 2008-09-18 University Of Northern British Columbia Systems and methods for monitoring wood product characteristics
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US8244022B2 (en) * 2008-05-06 2012-08-14 University Of New Brunsick Method for measuring deformability properties of a fibre
US7986401B2 (en) * 2008-09-22 2011-07-26 Bossa Nova Technologies, Llc Birefringent fibers orientation measurement
RU2521735C2 (ru) * 2009-03-19 2014-07-10 Конинклейке Филипс Электроникс Н.В. Бреющее устройство с детектором волос
KR101050694B1 (ko) * 2009-10-08 2011-07-20 광주과학기술원 생체세포의 상대위상 측정방법 및 생체세포의 상대위상 측정장치
TWI413765B (zh) * 2009-11-20 2013-11-01 Ind Tech Res Inst 物質特性量測方法與系統
JP5594041B2 (ja) * 2010-10-08 2014-09-24 株式会社島津製作所 ガス濃度測定装置
DE102011001106B3 (de) * 2011-03-04 2012-08-16 Technische Universität Graz Vorrichtung und Verfahren zur Unterscheidung von Faserkreuzungen und Faserbindungen in einem Fasernetzwerk
US8264675B1 (en) * 2011-05-12 2012-09-11 Georgia Tech Research Corporation Polariscope stress measurement tool and method of use
CN102692251B (zh) * 2012-05-14 2015-01-28 齐鲁工业大学 基于fpga+dsp的嵌入式纸浆纤维形态参数快速测量系统及方法
CN102749288B (zh) * 2012-07-20 2014-09-03 上海东华凯利新材料科技有限公司 动态纤维双折射测量仪
WO2014049831A1 (ja) * 2012-09-28 2014-04-03 ニプロ株式会社 流体濃度の測定方法および測定装置
JP2016521866A (ja) * 2013-06-09 2016-07-25 ボード・オブ・リージエンツ，ザ・ユニバーシテイ・オブ・テキサス・システム スペクトラム符号化に基づく高い消光比特性を有する偏光顕微鏡
WO2016088483A1 (ja) * 2014-12-01 2016-06-09 ソニー株式会社 画像処理装置と画像処理方法
US11214925B2 (en) 2015-08-21 2022-01-04 Pulmac Systems International, Inc. Method of preparing recycled cellulosic fibers to improve paper production
US10041209B1 (en) 2015-08-21 2018-08-07 Pulmac Systems International, Inc. System for engineering fibers to improve paper production
US10941520B2 (en) 2015-08-21 2021-03-09 Pulmac Systems International, Inc. Fractionating and refining system for engineering fibers to improve paper production
JP6925774B2 (ja) * 2015-10-02 2021-08-25 株式会社ニコン 顕微鏡
WO2017099755A1 (en) * 2015-12-09 2017-06-15 Board Of Regents, The University Of Texas System Spectrally-encoded high-extinction polarization microscope and methods of use
JP6605379B2 (ja) * 2016-03-28 2019-11-13 オリンパス株式会社 層板骨観察用顕微鏡
KR102041807B1 (ko) * 2016-09-02 2019-11-07 주식회사 엘지화학 광학 특성 검사기 및 광학 특성 검사 방법
FI127260B (en) * 2016-12-08 2018-02-15 Valmet Automation Oy Method and measuring device for measuring suspension
CN108871594A (zh) * 2017-05-09 2018-11-23 美国通用光电公司 基于光偏振分析的光频解码器及其光传感系统
EP3502348B1 (en) 2017-12-21 2020-06-24 BillerudKorsnäs AB Fibre fractionation
JP7288271B2 (ja) * 2018-11-29 2023-06-07 国立大学法人埼玉大学 膜厚分布測定装置
CA3124387C (en) * 2020-04-26 2022-05-24 China University Of Mining And Technology Device and method for detecting angle of shearer rocker arm based on optical fiber sensing
WO2022002939A1 (en) * 2020-06-30 2022-01-06 Universiteit Gent A method to produce a matched pair of polarizing filters and a method and apparatus to determine the concentration of birefringent particles using a pair of polarizing filters
CN113008426B (zh) * 2021-02-26 2022-02-11 江南大学 一种双频定量光弹性测量仪及测量方法
CN113533329A (zh) * 2021-07-12 2021-10-22 公安部物证鉴定中心 一种法庭科学偏振光显微镜检验用纤维比对片及其制备方法
JP7773200B2 (ja) * 2022-03-03 2025-11-19 国立研究開発法人量子科学技術研究開発機構 光学測定装置、および光学測定方法

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Also Published As

Publication number Publication date
WO2005054825A1 (en) 2005-06-16
BRPI0417255B1 (pt) 2018-02-14
EP1706725A4 (en) 2009-03-18
US7289210B2 (en) 2007-10-30
EP1706725B1 (en) 2019-12-25
CA2547788A1 (en) 2005-06-16
JP2007513342A (ja) 2007-05-24
EP1706725A1 (en) 2006-10-04
JP4653112B2 (ja) 2011-03-16
BRPI0417255A (pt) 2007-03-06
US20050122514A1 (en) 2005-06-09

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