SE9501280L - Mätning on-line av ligning i pappersmassa genom färgskiftning av fluorescens - Google Patents

Mätning on-line av ligning i pappersmassa genom färgskiftning av fluorescens

Info

Publication number
SE9501280L
SE9501280L SE9501280A SE9501280A SE9501280L SE 9501280 L SE9501280 L SE 9501280L SE 9501280 A SE9501280 A SE 9501280A SE 9501280 A SE9501280 A SE 9501280A SE 9501280 L SE9501280 L SE 9501280L
Authority
SE
Sweden
Prior art keywords
fluorescence
equation
measurement
line
paper pulp
Prior art date
Application number
SE9501280A
Other languages
English (en)
Other versions
SE9501280D0 (sv
Inventor
Larry Arliss Jeffers
Michael Louis Malito
Original Assignee
Babcock & Wilcox Co
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 Babcock & Wilcox Co filed Critical Babcock & Wilcox Co
Publication of SE9501280D0 publication Critical patent/SE9501280D0/sv
Publication of SE9501280L publication Critical patent/SE9501280L/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
    • G01N21/85—Investigating moving fluids or granular solids
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C7/00—Digesters
    • D21C7/12—Devices for regulating or controlling
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N2021/6417—Spectrofluorimetric 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N2021/6417—Spectrofluorimetric devices
    • G01N2021/6421—Measuring at two or more wavelengths
    • 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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/645—Specially adapted constructive features of fluorimeters
    • G01N2021/6484—Optical fibres

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (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)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
SE9501280A 1994-04-12 1995-04-06 Mätning on-line av ligning i pappersmassa genom färgskiftning av fluorescens SE9501280L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/226,801 US5486915A (en) 1994-04-12 1994-04-12 On-line measurement of lignin in wood pulp by color shift of fluorescence

Publications (2)

Publication Number Publication Date
SE9501280D0 SE9501280D0 (sv) 1995-04-06
SE9501280L true SE9501280L (sv) 1995-10-13

Family

ID=22850467

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9501280A SE9501280L (sv) 1994-04-12 1995-04-06 Mätning on-line av ligning i pappersmassa genom färgskiftning av fluorescens

Country Status (3)

Country Link
US (1) US5486915A (sv)
FI (1) FI951732A (sv)
SE (1) SE9501280L (sv)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510008C2 (de) * 1995-03-23 1997-01-30 Siemens Ag Verfahren und Vorrichtung zur Prozeßführung bei der Zellstoff- und/oder Papierherstellung
US5708275A (en) * 1996-06-07 1998-01-13 Honeywell Inc. PH measurement utilizing a light source
DE19653530C1 (de) * 1996-12-20 1998-07-23 Siemens Ag Verfahren und Vorrichtung zur Prozeßführung und zur Prozeßoptimierung bei der Herstellung von Zellstoff
US6069688A (en) * 1997-12-11 2000-05-30 Honeywell International Inc. Method for producing continuous in-like kappa measurements for papermaking pulps
US6052177A (en) * 1997-12-11 2000-04-18 Honeywell Inc. Apparatus used in determining the degree of completion of a processed medium
US5953111A (en) * 1997-12-11 1999-09-14 Honeywell Inc. Continuous in-line kappa measurement system
US6020587A (en) * 1998-01-06 2000-02-01 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Plant chlorophyll content meter
US6114683A (en) * 1998-03-02 2000-09-05 The United States Of Ameria As Represented By The Administrator Of The National Aeronautics And Space Administration Plant chlorophyll content imager with reference detection signals
BR9901292A (pt) * 1999-04-27 2000-01-04 Aracruz Celulose Método para controle de processo de branqueamento de polpa celulósica.
CA2293223C (en) * 1999-12-23 2004-02-10 Michael G. Paice Electrochemical method for determinating lignin content of pulp
US6551451B2 (en) 1999-12-23 2003-04-22 Pulp And Paper Research Institute Of Canada Method for determining liquid content in chemical pulps using ramen spectrometry
US6958811B2 (en) * 2000-06-29 2005-10-25 Carl Zeiss Jena Gmbh Method for the detection of dyes in fluorescence microscopy
CA2323876A1 (en) * 2000-10-19 2002-04-19 Eco-Shred Ltd. Optical paper sorting method device and apparatus
CA2329294C (en) * 2000-12-21 2007-01-02 Pulp And Paper Research Institute Of Canada Method and apparatus for measuring fibre properties
EP1639347A4 (en) * 2003-02-27 2009-12-23 Univ Washington PROCESS AND APPARATUS FOR THE DETERMINATION OF WOOD PULP FIBERS
DE10350075A1 (de) * 2003-10-27 2005-06-09 Siemens Ag Verfahren und Vorrichtung zur Prozessführung bei der Zellstoffkochung
JP2005257379A (ja) * 2004-03-10 2005-09-22 Fuji Seiki Mach Works Ltd 氷スラリー濃度測定装置
WO2008054297A1 (en) * 2006-11-01 2008-05-08 Btg Pulp & Paper Sensors Ab A method for determining brightness of paper pulp
US8120769B2 (en) * 2007-08-03 2012-02-21 North Carolina State University Method and system for fiber properties measurement
US7812947B2 (en) * 2008-01-21 2010-10-12 Honeywell International Inc. Apparatus and method for measuring and/or controlling paper pulp properties
CN103764911B (zh) * 2011-09-23 2016-05-18 纳尔科公司 监控造纸工艺中表面添加剂的荧光方法
JP5867073B2 (ja) * 2011-12-28 2016-02-24 富士通株式会社 樹脂硬化状態モニタリング装置及び樹脂硬化状態モニタリング方法
US9668420B2 (en) 2013-02-20 2017-06-06 Deere & Company Crop sensing display
US9066465B2 (en) 2013-02-20 2015-06-30 Deere & Company Soil compaction reduction system and method
US9693503B2 (en) 2013-02-20 2017-07-04 Deere & Company Crop sensing
US9282693B2 (en) 2013-02-20 2016-03-15 Deere & Company Data encoding with planting attributes
US11212962B2 (en) 2013-02-20 2022-01-04 Deere & Company Field condition determination
US10178828B2 (en) 2013-02-20 2019-01-15 Deere & Company Per plant crop sensing resolution
WO2016090455A1 (en) * 2014-12-12 2016-06-16 Canfor Pulp Ltd Method and apparatus for controlling a cellulosic pulp process
FI127260B (sv) * 2016-12-08 2018-02-15 Valmet Automation Oy Förfarande och mätanordning för mätning av suspension
FI127733B (sv) * 2016-12-19 2019-01-15 Valmet Automation Oy Anordning och förfarande för optisk mätning av flytande ämne med vätska som medium och partiklar som inte är lösta i medium

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5166755A (en) * 1990-05-23 1992-11-24 Nahum Gat Spectrometer apparatus
US5220172A (en) * 1991-09-23 1993-06-15 The Babcock & Wilcox Company Fluorescence analyzer for lignin
US5216483A (en) * 1991-09-23 1993-06-01 The Babcock & Wilcox Company Fluorescence analyzer for lignin

Also Published As

Publication number Publication date
US5486915A (en) 1996-01-23
SE9501280D0 (sv) 1995-04-06
FI951732A0 (sv) 1995-04-11
FI951732A (sv) 1995-10-13

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