NO325268B1 - Fremgangsmate for a forutsi plate-egenskaper ved anvendelse av spektroskopisk metode kombinert med multivariant kalibrering - Google Patents
Fremgangsmate for a forutsi plate-egenskaper ved anvendelse av spektroskopisk metode kombinert med multivariant kalibrering Download PDFInfo
- Publication number
- NO325268B1 NO325268B1 NO19980135A NO980135A NO325268B1 NO 325268 B1 NO325268 B1 NO 325268B1 NO 19980135 A NO19980135 A NO 19980135A NO 980135 A NO980135 A NO 980135A NO 325268 B1 NO325268 B1 NO 325268B1
- Authority
- NO
- Norway
- Prior art keywords
- wood
- spectral
- raw material
- data
- panels
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 127
- 238000004611 spectroscopical analysis Methods 0.000 title claims description 35
- 239000002023 wood Substances 0.000 claims description 153
- 230000003595 spectral effect Effects 0.000 claims description 75
- 239000002994 raw material Substances 0.000 claims description 64
- 230000008569 process Effects 0.000 claims description 63
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 238000004458 analytical method Methods 0.000 claims description 20
- 238000010202 multivariate logistic regression analysis Methods 0.000 claims description 20
- 238000010238 partial least squares regression Methods 0.000 claims description 20
- 238000000513 principal component analysis Methods 0.000 claims description 17
- 239000007771 core particle Substances 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 239000011093 chipboard Substances 0.000 claims description 11
- 238000012628 principal component regression Methods 0.000 claims description 10
- 230000035699 permeability Effects 0.000 claims description 9
- 238000007405 data analysis Methods 0.000 claims description 8
- 230000008961 swelling Effects 0.000 claims description 7
- 238000000149 argon plasma sintering Methods 0.000 claims description 4
- 238000000611 regression analysis Methods 0.000 claims description 4
- 230000005021 gait Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000000491 multivariate analysis Methods 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 33
- 238000001228 spectrum Methods 0.000 description 30
- 239000002245 particle Substances 0.000 description 24
- 239000000523 sample Substances 0.000 description 17
- 238000005259 measurement Methods 0.000 description 16
- 239000000203 mixture Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 12
- 238000001035 drying Methods 0.000 description 11
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 229920001807 Urea-formaldehyde Polymers 0.000 description 8
- 230000004044 response Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004497 NIR spectroscopy Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012549 training Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 3
- 239000011094 fiberboard Substances 0.000 description 3
- 239000011121 hardwood Substances 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012569 chemometric method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 238000000411 transmission spectrum Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- JZLWSRCQCPAUDP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;urea Chemical compound NC(N)=O.NC1=NC(N)=NC(N)=N1 JZLWSRCQCPAUDP-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 238000010222 PCR analysis Methods 0.000 description 1
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000012630 chemometric algorithm Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000007620 mathematical function Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 238000001055 reflectance spectroscopy Methods 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000013179 statistical model Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000002235 transmission spectroscopy Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- -1 weight settings Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/02—Mixing the material with binding agent
- B27N1/029—Feeding; Proportioning; 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
- G01N21/17—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
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
-
- 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
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
- Complex Calculations (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9502611A SE9502611D0 (sv) | 1995-07-14 | 1995-07-14 | Prediction of the properties of board |
| PCT/SE1996/000892 WO1997004299A1 (en) | 1995-07-14 | 1996-07-02 | Prediction of the properties of board by using a spectroscopic method combined with multivariate calibration |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO980135D0 NO980135D0 (no) | 1998-01-13 |
| NO980135L NO980135L (no) | 1998-03-16 |
| NO325268B1 true NO325268B1 (no) | 2008-03-17 |
Family
ID=20399001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19980135A NO325268B1 (no) | 1995-07-14 | 1998-01-13 | Fremgangsmate for a forutsi plate-egenskaper ved anvendelse av spektroskopisk metode kombinert med multivariant kalibrering |
Country Status (33)
| Country | Link |
|---|---|
| US (1) | US5965888A (de) |
| EP (1) | EP0839317B1 (de) |
| JP (1) | JP3370681B2 (de) |
| KR (1) | KR100233948B1 (de) |
| CN (1) | CN1117271C (de) |
| AR (1) | AR002823A1 (de) |
| AT (1) | ATE188033T1 (de) |
| AU (1) | AU690470B2 (de) |
| BG (1) | BG62533B1 (de) |
| BR (1) | BR9609761A (de) |
| CA (1) | CA2226727C (de) |
| CZ (1) | CZ296823B6 (de) |
| DE (1) | DE69605801T2 (de) |
| DK (1) | DK0839317T3 (de) |
| EA (1) | EA000988B1 (de) |
| EE (1) | EE03938B1 (de) |
| ES (1) | ES2140878T3 (de) |
| HU (1) | HU221230B1 (de) |
| IL (1) | IL122437A (de) |
| MX (1) | MX9800413A (de) |
| MY (1) | MY118744A (de) |
| NO (1) | NO325268B1 (de) |
| NZ (1) | NZ312816A (de) |
| PL (1) | PL181795B1 (de) |
| PT (1) | PT839317E (de) |
| RO (1) | RO117048B1 (de) |
| SE (1) | SE9502611D0 (de) |
| SI (1) | SI0839317T1 (de) |
| SK (1) | SK282825B6 (de) |
| TR (1) | TR199800033T1 (de) |
| UA (1) | UA28105C2 (de) |
| WO (1) | WO1997004299A1 (de) |
| ZA (1) | ZA965808B (de) |
Families Citing this family (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6414312B1 (en) | 1998-03-05 | 2002-07-02 | Akzo Nobel N.V. | Method for controlling a process for the production of a cellulose fiber containing product |
| CA2322278C (en) * | 1998-03-05 | 2004-12-14 | Akzo Nobel N.V. | A method for controlling a process for the production of a cellulose fibre containing product |
| DE19927969A1 (de) | 1998-06-22 | 1999-12-23 | Siemens Ag | Verfahren und Vorrichtung zur Prozeßführung und Prozeßoptimierung bei der Herstellung von Fasermatten und/oder Faserplatten |
| US6207956B1 (en) * | 1998-09-04 | 2001-03-27 | The Toro Company | Method and apparatus for quantitative determination of turfgrass color |
| US6647343B1 (en) * | 1999-04-29 | 2003-11-11 | Agilent Technologies, Inc. | Temporal profile analysis of mass data in a mass sensor system |
| AU771753B2 (en) * | 1999-06-28 | 2004-04-01 | New Zealand Forest Research Institute Limited | Method for identifying properties of wood by infra-red or visible light |
| SE523308E (sv) | 2000-03-02 | 2007-12-27 | Valmet Fibertech Ab | Förfarande för kontinuerlig bestämning av egenskaper hos ett trägiberflöde för träfiberskiveframställning |
| US6606568B2 (en) | 2000-06-28 | 2003-08-12 | Midwest Research Institute | Method for predicting dry mechanical properties from wet wood and standing trees |
| US6525319B2 (en) | 2000-12-15 | 2003-02-25 | Midwest Research Institute | Use of a region of the visible and near infrared spectrum to predict mechanical properties of wet wood and standing trees |
| US6593572B2 (en) | 2000-12-13 | 2003-07-15 | Midwest Research Institute | Method of predicting mechanical properties of decayed wood |
| GB0031522D0 (en) * | 2000-12-22 | 2001-02-07 | Enigma Nv | Use of NIR (near-infra red spectroscopy) in composite production |
| GB0102688D0 (en) * | 2001-02-02 | 2001-03-21 | Enigma Nv | Method for assessing remaining useful life and overall quality of laminating paper |
| US7167773B2 (en) | 2001-03-21 | 2007-01-23 | Signature Control Systems | Process and apparatus for improving and controlling the curing of natural and synthetic moldable compounds |
| US7245985B2 (en) | 2001-03-21 | 2007-07-17 | Signature Control Systems | Process and apparatus for improving and controlling the vulcanization of natural and synthetic rubber compounds |
| US7194369B2 (en) * | 2001-07-23 | 2007-03-20 | Cognis Corporation | On-site analysis system with central processor and method of analyzing |
| US7321425B2 (en) * | 2004-12-20 | 2008-01-22 | Honeywell International Inc. | Sensor and methods for measuring select components in sheetmaking systems |
| US7279684B2 (en) * | 2005-12-13 | 2007-10-09 | Huber Engineered Woods Llc | Method using NIR spectroscopy to monitor components of engineered wood products |
| US20070222100A1 (en) * | 2006-03-21 | 2007-09-27 | Huber Engineered Woods L.L.C. | Method and system using NIR spectroscopy for in-line monitoring and controlling content in continuous production of engineered wood products |
| US20090230306A1 (en) * | 2008-03-17 | 2009-09-17 | Andre Nicolas | Spectroscopic Prediction of Formaldehyde Emission and Thickness Swell of Wood Panels |
| US8519337B2 (en) * | 2008-06-28 | 2013-08-27 | The Boeing Company | Thermal effect measurement with near-infrared spectroscopy |
| US8552382B2 (en) * | 2008-08-14 | 2013-10-08 | The Boeing Company | Thermal effect measurement with mid-infrared spectroscopy |
| US8436311B2 (en) * | 2008-08-14 | 2013-05-07 | The Boeing Company | Method of predicting thermal or chemical effect in a coated or painted composite material |
| US7807971B2 (en) * | 2008-11-19 | 2010-10-05 | The Boeing Company | Measurement of moisture in composite materials with near-IR and mid-IR spectroscopy |
| EP2431144B1 (de) | 2010-09-15 | 2012-10-31 | Kronotec AG | Verfahren und Einrichtung zur Nassbeleimung von Holzfasern |
| US9182360B2 (en) | 2013-07-22 | 2015-11-10 | Honeywell Asca Inc. | Multi-frequency microwave sensor for temperature independent measurement of moisture |
| CN104865944B (zh) * | 2014-07-17 | 2017-11-28 | 辽宁石油化工大学 | 基于pca‑lssvm的气分装置控制系统性能评估方法 |
| DE102014214363B4 (de) | 2014-07-23 | 2018-03-22 | Türmerleim Gmbh | Verfahren und Vorrichtung zur Beeinflussung und Regelung eines Verleimungsprozesses |
| CN104390932B (zh) * | 2014-11-12 | 2017-06-30 | 中南林业科技大学 | 基于红外差谱技术的木材含水率检测方法 |
| ES2637750T3 (es) * | 2015-04-09 | 2017-10-16 | Flooring Technologies Ltd. | Procedimiento para la determinación de la resistencia a la abrasión de al menos una capa de desgaste dispuesta sobre una placa de soporte |
| CN106442382A (zh) * | 2016-07-15 | 2017-02-22 | 中国林业科学研究院热带林业研究所 | 一种快速预测尾细桉木材基本密度的方法 |
| CN108362702A (zh) * | 2017-12-14 | 2018-08-03 | 北京木业邦科技有限公司 | 一种基于人工智能的单板缺陷检测方法、系统及设备 |
| RU2730407C1 (ru) * | 2020-02-03 | 2020-08-21 | Фин Скан Ою | Способ оценки качества пиломатериала и устройство для его реализации |
| TWI762271B (zh) * | 2020-08-13 | 2022-04-21 | 日商名南製作所股份有限公司 | 板狀木材的缺陷檢測系統、缺陷檢測方法以及缺陷檢測用程式 |
| CN113109290B (zh) * | 2021-04-08 | 2023-03-03 | 晨光生物科技集团股份有限公司 | 一种快速预判天然色素衰减速度的方法 |
| CN113447452A (zh) * | 2021-06-29 | 2021-09-28 | 西安交通大学 | 一种用于绝缘纸光谱的水分影响因素校正方法及系统 |
| ES2932150A1 (es) * | 2021-06-29 | 2023-01-13 | Luque Ripoll Luis De | Procedimiento de determinación del origen geográfico y/o la especie botánica en muestras de madera |
| DE102021004704A1 (de) * | 2021-09-17 | 2023-03-23 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Anlage und Verfahren zur kontinuerlichen Herstellung von Werkstoffplatten sowie eine Testvorrichtung und Testverfahren zur Ermittlung von zumindest einer Werkstoffkenngrösse |
| EP4303567B1 (de) * | 2022-07-04 | 2024-08-21 | Flooring Technologies Ltd. | Verfahren zur bestimmung der menge von mindestens einem pulverförmigen bindemittel in einer mischung mit holzpartikeln |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4606645A (en) * | 1984-10-29 | 1986-08-19 | Weyerhaeuser Company | Method for determining localized fiber angle in a three dimensional fibrous material |
| US4800279A (en) * | 1985-09-13 | 1989-01-24 | Indiana University Foundation | Methods and devices for near-infrared evaluation of physical properties of samples |
| US5252836A (en) * | 1991-03-07 | 1993-10-12 | U.S. Natural Resources, Inc. | Reflective grain defect scanning |
| CA2062447C (en) * | 1991-03-07 | 1998-10-13 | Peter Charles Matthews | Reflective grain defect scanning |
| SE507486C3 (sv) * | 1991-09-12 | 1998-07-13 | Valmet Automation Kajaani Ltd | Foerfarande och anordning foer maetning av fiberegenskaper med naera-infra-roed-spektroskopi |
| US5360972A (en) * | 1993-08-17 | 1994-11-01 | Western Atlas International, Inc. | Method for improving chemometric estimations of properties of materials |
| NZ270892A (en) * | 1994-08-24 | 1997-01-29 | Us Natural Resources | Detecting lumber defects utilizing optical pattern recognition algorithm |
-
1995
- 1995-07-14 SE SE9502611A patent/SE9502611D0/xx unknown
-
1996
- 1996-07-02 EP EP96924218A patent/EP0839317B1/de not_active Expired - Lifetime
- 1996-07-02 WO PCT/SE1996/000892 patent/WO1997004299A1/en active IP Right Grant
- 1996-07-02 KR KR1019970709810A patent/KR100233948B1/ko not_active IP Right Cessation
- 1996-07-02 AU AU64735/96A patent/AU690470B2/en not_active Ceased
- 1996-07-02 US US08/981,590 patent/US5965888A/en not_active Expired - Lifetime
- 1996-07-02 UA UA98020738A patent/UA28105C2/uk unknown
- 1996-07-02 SK SK40-98A patent/SK282825B6/sk not_active IP Right Cessation
- 1996-07-02 AT AT96924218T patent/ATE188033T1/de active
- 1996-07-02 SI SI9630149T patent/SI0839317T1/xx unknown
- 1996-07-02 DE DE69605801T patent/DE69605801T2/de not_active Expired - Lifetime
- 1996-07-02 PT PT96924218T patent/PT839317E/pt unknown
- 1996-07-02 TR TR1998/00033T patent/TR199800033T1/xx unknown
- 1996-07-02 EE EE9800029A patent/EE03938B1/xx unknown
- 1996-07-02 IL IL12243796A patent/IL122437A/xx not_active IP Right Cessation
- 1996-07-02 JP JP50660197A patent/JP3370681B2/ja not_active Expired - Fee Related
- 1996-07-02 RO RO98-00052A patent/RO117048B1/ro unknown
- 1996-07-02 EA EA199800126A patent/EA000988B1/ru not_active IP Right Cessation
- 1996-07-02 HU HU9900683A patent/HU221230B1/hu not_active IP Right Cessation
- 1996-07-02 CZ CZ0003198A patent/CZ296823B6/cs not_active IP Right Cessation
- 1996-07-02 BR BR9609761A patent/BR9609761A/pt not_active IP Right Cessation
- 1996-07-02 CN CN96195529A patent/CN1117271C/zh not_active Expired - Fee Related
- 1996-07-02 ES ES96924218T patent/ES2140878T3/es not_active Expired - Lifetime
- 1996-07-02 DK DK96924218T patent/DK0839317T3/da active
- 1996-07-02 PL PL96324493A patent/PL181795B1/pl unknown
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- 1996-07-09 ZA ZA965808A patent/ZA965808B/xx unknown
- 1996-07-10 MY MYPI96002843A patent/MY118744A/en unknown
- 1996-07-12 AR ARP960103559A patent/AR002823A1/es unknown
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1998
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- 1998-02-09 BG BG102237A patent/BG62533B1/bg unknown
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