FI20125561A - Humidity measurement - Google Patents
Humidity measurement Download PDFInfo
- Publication number
- FI20125561A FI20125561A FI20125561A FI20125561A FI20125561A FI 20125561 A FI20125561 A FI 20125561A FI 20125561 A FI20125561 A FI 20125561A FI 20125561 A FI20125561 A FI 20125561A FI 20125561 A FI20125561 A FI 20125561A
- Authority
- FI
- Finland
- Prior art keywords
- cellulose
- predetermined
- bands
- attenuation
- basis
- Prior art date
Links
- 238000005259 measurement Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 abstract 9
- 229920002678 cellulose Polymers 0.000 abstract 5
- 239000001913 cellulose Substances 0.000 abstract 5
- 238000010521 absorption reaction Methods 0.000 abstract 4
- 230000001419 dependent effect Effects 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 4
- 238000004040 coloring Methods 0.000 abstract 3
- 230000005855 radiation Effects 0.000 abstract 3
- 230000003595 spectral effect Effects 0.000 abstract 3
- 239000000126 substance Substances 0.000 abstract 3
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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
- G01N21/3559—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content in sheets, e.g. in paper
-
- 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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/34—Paper
- G01N33/346—Paper 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N2021/3148—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using three 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/86—Investigating moving sheets
- G01N2021/8663—Paper, e.g. gloss, moisture content
-
- 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
-
- 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
- G01N2201/062—LED's
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The detector receives optical radiation transmitted through the measured object and is responsive to one or more predetermined optical absorption bands of water, one or more predetermined optical absorption bands of cellulose and two or more separate optical bands related to spectral disturbance caused by coloring substance. The measuring unit measures, on the basis of responses of the detector, a water dependent value on the basis of attenuation of the optical radiation in the predetermined optical absorption band of water, a cellulose dependent value on the basis of attenuation of the optical radiation in the predetermined optical absorption band of cellulose, determines general dependence of attenuation with respect to wavelength including spectral disturbance caused by coloring substance by measuring attenuations in predetermined separate optical bands apart from the predetermined bands of water and cellulose, and forms a moisture value on the basis of the moisture dependent value, the cellulose dependent value, and the general dependence of attenuation for compensating for the spectral disturbance of the at least one coloring substance.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20125561A FI125721B (en) | 2012-05-25 | 2012-05-25 | Apparatus and method for measuring an object comprising cellulosic material and at least one dye including printing ink |
US14/403,650 US9151710B2 (en) | 2012-05-25 | 2013-05-22 | Moisture measurement |
PCT/FI2013/050560 WO2013175072A1 (en) | 2012-05-25 | 2013-05-22 | Moisture measurement |
EP13793944.3A EP2856112A4 (en) | 2012-05-25 | 2013-05-22 | Moisture measurement |
CN201380039459.6A CN104508459A (en) | 2012-05-25 | 2013-05-22 | Moisture measurement |
CA2874197A CA2874197C (en) | 2012-05-25 | 2013-05-22 | Moisture measurement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20125561 | 2012-05-25 | ||
FI20125561A FI125721B (en) | 2012-05-25 | 2012-05-25 | Apparatus and method for measuring an object comprising cellulosic material and at least one dye including printing ink |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20125561A true FI20125561A (en) | 2013-11-26 |
FI125721B FI125721B (en) | 2016-01-29 |
Family
ID=49623216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20125561A FI125721B (en) | 2012-05-25 | 2012-05-25 | Apparatus and method for measuring an object comprising cellulosic material and at least one dye including printing ink |
Country Status (6)
Country | Link |
---|---|
US (1) | US9151710B2 (en) |
EP (1) | EP2856112A4 (en) |
CN (1) | CN104508459A (en) |
CA (1) | CA2874197C (en) |
FI (1) | FI125721B (en) |
WO (1) | WO2013175072A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11307027B2 (en) * | 2017-04-25 | 2022-04-19 | Hewlett-Packard Development Company, L.P. | Determining a characteristic of a substrate |
JP7456171B2 (en) * | 2020-01-31 | 2024-03-27 | セイコーエプソン株式会社 | processing equipment |
CN112763573B (en) * | 2020-12-31 | 2024-02-06 | 绵阳同成智能装备股份有限公司 | Banner curve interference compensation method and system based on paper detection scanning device |
CN113125382B (en) * | 2021-03-31 | 2023-12-29 | 北京印刷学院 | Method and device for detecting ink-jet printing drying effect based on optical characteristics |
CN113172993A (en) * | 2021-04-27 | 2021-07-27 | 广州诚鼎机器人有限公司 | Slurry humidity monitoring equipment and elliptical printing machine |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792271A (en) * | 1972-06-30 | 1974-02-12 | Asea Ab | Means for determining moisture content and/or surface weight |
US4306151A (en) | 1978-02-03 | 1981-12-15 | Measurex Corporation | Method of measuring the amount of substance associated with a material in the presence of a contaminant |
DE2910673C2 (en) | 1979-03-19 | 1985-08-08 | Paul Lippke Gmbh & Co Kg, 5450 Neuwied | Method for contactless measurement of the absolute content of a substance (secondary substance) in a mixture (main substance and secondary substance) of several substances in the form of a thin film, in particular for measuring the absolute content of water in paper |
US4300049A (en) | 1980-02-27 | 1981-11-10 | Accuray Corporation | Dynamically standardized radiant energy method and apparatus for plural channel gain independent material property measurement |
FI75675C (en) | 1984-03-23 | 1988-07-11 | Saehkoeliikkeiden Oy | A method for determining the hydrocarbon content of liquids containing its α. |
DE3643764A1 (en) * | 1986-12-20 | 1988-06-30 | Lippke Gmbh Co Kg Paul | METHOD FOR SELECTIVE FILLER MEASUREMENT ON RUNNING MATERIAL SHEETS, IN PARTICULAR PAPER SHEETS |
US4805623A (en) | 1987-09-04 | 1989-02-21 | Vander Corporation | Spectrophotometric method for quantitatively determining the concentration of a dilute component in a light- or other radiation-scattering environment |
CA1319273C (en) | 1988-03-10 | 1993-06-22 | Steven Perry Sturm | Clay sensor |
US4957770A (en) | 1989-01-27 | 1990-09-18 | Measurex Corporation | Coating weight measuring and control apparatus and method |
US5124552A (en) * | 1991-01-28 | 1992-06-23 | Measurex Corporation | Sensor and method for measuring web moisture with optimal temperature insensitivity over a wide basis weight range |
US5276327A (en) | 1991-12-09 | 1994-01-04 | Measurex Corporation | Sensor and method for mesaurement of select components of a material |
US5250811A (en) | 1991-12-20 | 1993-10-05 | Eastman Kodak Company | Method for determining compositional information of a multilayer web |
GB9624035D0 (en) * | 1996-11-19 | 1997-01-08 | Infrared Eng | Infrared measuring gauge |
FI112975B (en) | 1997-09-15 | 2004-02-13 | Metso Automation Oy | Method and apparatus for measuring quality properties of paper from a moving paper web at a paper machine |
DE19831612A1 (en) | 1998-07-14 | 2000-01-20 | Voith Sulzer Papiermasch Gmbh | Measuring system |
US6355931B1 (en) | 1998-10-02 | 2002-03-12 | The Regents Of The University Of California | System and method for 100% moisture and basis weight measurement of moving paper |
FI115856B (en) | 2000-02-10 | 2005-07-29 | Metso Automation Oy | Method and apparatus for measuring coating |
DE102004003042A1 (en) | 2004-01-20 | 2005-08-18 | Voith Paper Patent Gmbh | Basis weight of the cover layer of a fibrous web |
DE102004060036A1 (en) | 2004-12-10 | 2006-06-14 | Voith Paper Patent Gmbh | Moisture content determining device for a region of a web (e.g. of paper) has an electromagnetic wave transmitter and receiver moving transverse to the web |
US7812947B2 (en) | 2008-01-21 | 2010-10-12 | Honeywell International Inc. | Apparatus and method for measuring and/or controlling paper pulp properties |
FI20105452A0 (en) | 2010-04-26 | 2010-04-26 | Metso Automation Oy | Track measurement |
US20130220158A1 (en) | 2010-10-28 | 2013-08-29 | Imego Aktiebolag | System and a method for detecting material parameters |
-
2012
- 2012-05-25 FI FI20125561A patent/FI125721B/en active IP Right Grant
-
2013
- 2013-05-22 CA CA2874197A patent/CA2874197C/en active Active
- 2013-05-22 WO PCT/FI2013/050560 patent/WO2013175072A1/en active Application Filing
- 2013-05-22 US US14/403,650 patent/US9151710B2/en active Active
- 2013-05-22 EP EP13793944.3A patent/EP2856112A4/en not_active Ceased
- 2013-05-22 CN CN201380039459.6A patent/CN104508459A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP2856112A4 (en) | 2015-06-03 |
CN104508459A (en) | 2015-04-08 |
FI125721B (en) | 2016-01-29 |
EP2856112A1 (en) | 2015-04-08 |
CA2874197C (en) | 2020-04-07 |
US9151710B2 (en) | 2015-10-06 |
CA2874197A1 (en) | 2013-11-28 |
WO2013175072A1 (en) | 2013-11-28 |
US20150153273A1 (en) | 2015-06-04 |
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PC | Transfer of assignment of patent |
Owner name: VALMET AUTOMATION OY |
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