SE501650C2 - Anordning och förfarande för detektering av defekter i virke - Google Patents

Anordning och förfarande för detektering av defekter i virke

Info

Publication number
SE501650C2
SE501650C2 SE9400849A SE9400849A SE501650C2 SE 501650 C2 SE501650 C2 SE 501650C2 SE 9400849 A SE9400849 A SE 9400849A SE 9400849 A SE9400849 A SE 9400849A SE 501650 C2 SE501650 C2 SE 501650C2
Authority
SE
Sweden
Prior art keywords
light
wood
sensor
detected
image
Prior art date
Application number
SE9400849A
Other languages
English (en)
Swedish (sv)
Other versions
SE9400849D0 (sv
SE9400849L (sv
Inventor
Erik Aastrand
Anders Aastroem
Original Assignee
Soliton Elektronik Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20393267&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE501650(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Soliton Elektronik Ab filed Critical Soliton Elektronik Ab
Priority to SE9400849A priority Critical patent/SE501650C2/sv
Publication of SE9400849D0 publication Critical patent/SE9400849D0/xx
Priority to EP95912531A priority patent/EP0765471B1/de
Priority to DE69530925T priority patent/DE69530925T2/de
Priority to PCT/SE1995/000212 priority patent/WO1995024636A1/en
Priority to AU19645/95A priority patent/AU1964595A/en
Priority to AT95912531T priority patent/ATE241804T1/de
Publication of SE9400849L publication Critical patent/SE9400849L/
Publication of SE501650C2 publication Critical patent/SE501650C2/sv

Links

Classifications

    • 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
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • 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
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/898—Irregularities in textured or patterned surfaces, e.g. textiles, wood
    • G01N21/8986—Wood
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Textile Engineering (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
SE9400849A 1994-03-08 1994-03-08 Anordning och förfarande för detektering av defekter i virke SE501650C2 (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9400849A SE501650C2 (sv) 1994-03-08 1994-03-08 Anordning och förfarande för detektering av defekter i virke
EP95912531A EP0765471B1 (de) 1994-03-08 1995-03-01 Anordnung und verfahren zum nachweis von fehlern im holz
DE69530925T DE69530925T2 (de) 1994-03-08 1995-03-01 Anordnung und verfahren zum nachweis von fehlern im holz
PCT/SE1995/000212 WO1995024636A1 (en) 1994-03-08 1995-03-01 Arrangement and method for the detection of defects in timber
AU19645/95A AU1964595A (en) 1994-03-08 1995-03-01 Arrangement and method for the detection of defects in timber
AT95912531T ATE241804T1 (de) 1994-03-08 1995-03-01 Anordnung und verfahren zum nachweis von fehlern im holz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9400849A SE501650C2 (sv) 1994-03-08 1994-03-08 Anordning och förfarande för detektering av defekter i virke

Publications (3)

Publication Number Publication Date
SE9400849D0 SE9400849D0 (sv) 1994-03-08
SE9400849L SE9400849L (sv) 1995-04-03
SE501650C2 true SE501650C2 (sv) 1995-04-03

Family

ID=20393267

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9400849A SE501650C2 (sv) 1994-03-08 1994-03-08 Anordning och förfarande för detektering av defekter i virke

Country Status (6)

Country Link
EP (1) EP0765471B1 (de)
AT (1) ATE241804T1 (de)
AU (1) AU1964595A (de)
DE (1) DE69530925T2 (de)
SE (1) SE501650C2 (de)
WO (1) WO1995024636A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012098455A1 (en) 2011-01-20 2012-07-26 Visiometric Oü Arrangement and method in measuring system
EP1432961B2 (de) † 2001-10-02 2016-03-02 Sick IVP AB Verfahren und anordnung in einem messsystem

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6122065A (en) * 1996-08-12 2000-09-19 Centre De Recherche Industrielle Du Quebec Apparatus and method for detecting surface defects
US5960104A (en) * 1996-08-16 1999-09-28 Virginia Polytechnic & State University Defect detection system for lumber
DE19717488C2 (de) * 1997-04-25 2003-05-15 Baumer Optronic Gmbh Vorrichtung zur Inspektion der Oberfläche von Objekten
DE19745910C2 (de) * 1997-10-17 1999-11-18 Stn Atlas Elektronik Gmbh Verfahren und Vorrichtung zum Überprüfen von Hartholzoberflächen auf Risse
CA2245412C (en) 1998-08-20 2001-06-26 Centre De Recherche Industrielle Du Quebec Apparatus and method for marking elongated articles
CA2365654C (en) * 2001-12-07 2007-10-09 Centre De Recherche Industrielle Du Quebec Apparatus and method for detecting twist in articles
ITBZ20020018A1 (it) * 2002-04-18 2003-10-20 Microtec Srl Procedimento per riconoscere sulla superficie di tavole di legno la presenza di difetti quali crepe o bordi smussati.
SE526617C2 (sv) * 2003-10-01 2005-10-18 Sick Ivp Ab System och metod för att avbilda ett objekts egenskaper
US7084989B2 (en) 2004-04-19 2006-08-01 Sick Ivp Aktiebolag Measuring apparatus and method in a distribution system
DE102005025009A1 (de) 2005-05-29 2006-11-30 Massen Machine Vision Systems Gmbh Charakterisierung und Qualitätskontrolle von zumindestens teilweise optisch transluzenten und intern optisch streuenden Produkten
DE102006044307A1 (de) 2006-09-17 2008-09-25 Massen Machine Vision Systems Gmbh Multisensorielle Inspektion von Naturholz-Oberflächen
DK1985969T3 (en) 2007-04-26 2017-12-04 Sick Ivp Ab Method and apparatus for determining the amount of scattered light in a machine vision system
KR101245148B1 (ko) * 2011-03-10 2013-03-19 주식회사 미르기술 영상 선명도가 개선된 비전검사장치
CN104406517A (zh) * 2014-11-12 2015-03-11 昆山万像光电有限公司 一种多工位镭射平面度扫描量测方法
CN105352971B (zh) * 2015-12-17 2018-05-04 大连实远科技发展有限公司 柱状物外表面缺陷检查用照明装置
CN118896568B (zh) * 2024-07-30 2025-02-25 山东周广胜木雕有限公司 一种木制品表面平整度检测方法、系统、电子设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1488841A (en) * 1974-01-18 1977-10-12 Plessey Co Ltd Optical detection apparatus
SE464105B (sv) * 1990-03-01 1991-03-04 Rema Control Ab Saett och anordning foer, att fraan en stock framstaellda virkesbitar identifiera stockens maergomraade

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1432961B2 (de) † 2001-10-02 2016-03-02 Sick IVP AB Verfahren und anordnung in einem messsystem
WO2012098455A1 (en) 2011-01-20 2012-07-26 Visiometric Oü Arrangement and method in measuring system

Also Published As

Publication number Publication date
EP0765471B1 (de) 2003-05-28
ATE241804T1 (de) 2003-06-15
AU1964595A (en) 1995-09-25
SE9400849D0 (sv) 1994-03-08
WO1995024636A1 (en) 1995-09-14
SE9400849L (sv) 1995-04-03
EP0765471A1 (de) 1997-04-02
DE69530925T2 (de) 2004-04-01
DE69530925D1 (de) 2003-07-03

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