SE8304117D0 - METHOD AND DEVICE FOR CONTACT IDENTIFICATION AND STRUCTURAL DESCRIPTION OF WOOD - Google Patents

METHOD AND DEVICE FOR CONTACT IDENTIFICATION AND STRUCTURAL DESCRIPTION OF WOOD

Info

Publication number
SE8304117D0
SE8304117D0 SE8304117A SE8304117A SE8304117D0 SE 8304117 D0 SE8304117 D0 SE 8304117D0 SE 8304117 A SE8304117 A SE 8304117A SE 8304117 A SE8304117 A SE 8304117A SE 8304117 D0 SE8304117 D0 SE 8304117D0
Authority
SE
Sweden
Prior art keywords
sensors
wood
structural description
contact identification
variations
Prior art date
Application number
SE8304117A
Other languages
Swedish (sv)
Other versions
SE8304117L (en
Inventor
Tord Wadell
Original Assignee
Tord Wadell
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 Tord Wadell filed Critical Tord Wadell
Priority to SE8304117A priority Critical patent/SE8304117L/en
Publication of SE8304117D0 publication Critical patent/SE8304117D0/en
Priority to EP19840902839 priority patent/EP0181332A1/en
Priority to PCT/SE1984/000262 priority patent/WO1985000657A1/en
Priority to CA000459321A priority patent/CA1220275A/en
Publication of SE8304117L publication Critical patent/SE8304117L/en
Priority to FI853204A priority patent/FI853204A0/en

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
    • G01N21/88—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
    • 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
    • G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving

Abstract

The object is scanned by means of optoelectrical sensors of at least two different types, being on the one hand sensors (2, 3, 9) with coarse resolution for the measurement of all or large parts of the object and on the other hand sensors (4-8) with fine resolution for the detailed measurement of the object. By means of the sensors of the first-mentioned type are determined the presence and the position of any variations in quality which are of interest in this context. The nature of any such variations is then determined by the sensors of the other type.
SE8304117A 1983-07-22 1983-07-22 METHOD AND DEVICE FOR CONTACT IDENTIFICATION AND STRUCTURAL DESCRIPTION OF WOOD SE8304117L (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8304117A SE8304117L (en) 1983-07-22 1983-07-22 METHOD AND DEVICE FOR CONTACT IDENTIFICATION AND STRUCTURAL DESCRIPTION OF WOOD
EP19840902839 EP0181332A1 (en) 1983-07-22 1984-07-18 Method and arrangement for the contact-free quality identification and structural description of, for instance, workpieces such as lengths of timber
PCT/SE1984/000262 WO1985000657A1 (en) 1983-07-22 1984-07-18 Method and arrangement for the contact-free quality identification and structural description of, for instance, workpieces such as lengths of timber
CA000459321A CA1220275A (en) 1983-07-22 1984-07-20 Method and arrangement for the contact-free quality identification and structural description of, for instance, workpieces such as lengths of timber
FI853204A FI853204A0 (en) 1983-07-22 1985-08-21 FOERFARANDE OCH ANORDNING FOER BEROERINGSFRI KVALITETSIDENTIFIERING OCH STRUKTURBESKRIVNING AV EXEMPELVIS ARBETSSTYCKEN SAOSOM VIRKESSTYCKEN.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8304117A SE8304117L (en) 1983-07-22 1983-07-22 METHOD AND DEVICE FOR CONTACT IDENTIFICATION AND STRUCTURAL DESCRIPTION OF WOOD

Publications (2)

Publication Number Publication Date
SE8304117D0 true SE8304117D0 (en) 1983-07-22
SE8304117L SE8304117L (en) 1985-01-23

Family

ID=20352046

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8304117A SE8304117L (en) 1983-07-22 1983-07-22 METHOD AND DEVICE FOR CONTACT IDENTIFICATION AND STRUCTURAL DESCRIPTION OF WOOD

Country Status (5)

Country Link
EP (1) EP0181332A1 (en)
CA (1) CA1220275A (en)
FI (1) FI853204A0 (en)
SE (1) SE8304117L (en)
WO (1) WO1985000657A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3672163D1 (en) * 1986-02-22 1990-07-26 Pinsch Gmbh & Co Helmut K WOOD CHECKER.
US4831545A (en) * 1987-06-26 1989-05-16 Weyerhaeuser Company Method for determination of pith location relative to lumber surfaces
SE510242C2 (en) * 1992-04-23 1999-05-03 Limab Laser Instrumentmek Method and measurement system for detecting defects at the surface of a piece of wood
US5406378A (en) * 1992-04-29 1995-04-11 Mpb Technologies Inc. Method and apparatus for non-contact and rapid identification of wood species
FR2712080B1 (en) * 1993-11-04 1995-12-08 Cogema Method for controlling the surface condition of a face of a solid and associated device.
FR2721418B1 (en) * 1994-06-15 1996-08-14 Kodak Pathe Method and device for counting and characterizing defects on a photographic medium.
AU7270200A (en) * 1999-09-14 2001-04-17 Opti-Wood Aps Method for quality determination and handling of elongate wood items
DE10064891A1 (en) * 2000-12-23 2002-06-27 Rettenmeier Holding Gmbh & Co Method for documentation of optical quality control of wood bodies in which a body, such as a tree trunk, is optically measured and imaged using a digital camera array, to provide documentation for pricing and documentation
DE102007030865A1 (en) * 2007-06-25 2009-07-09 GreCon Dimter Holzoptimierung Süd GmbH & Co. KG Apparatus and method for scanning solid woods
IT1397123B1 (en) * 2008-09-18 2012-12-28 Microtec Srl METHOD FOR CHECKING THE POSITIONING OF A WOOD ELEMENT ALONG A WORKING LINE AND RELATED APPLICATIONS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864564A (en) * 1973-09-26 1975-02-04 Corning Glass Works Acquisition system for slide analysis
GB1488841A (en) * 1974-01-18 1977-10-12 Plessey Co Ltd Optical detection apparatus
US3970841A (en) * 1974-11-25 1976-07-20 Green James E Method and apparatus for dual resolution analysis of a scene
SE404964B (en) * 1977-03-22 1978-11-06 Sarlos Seppo Edvard DEVICE FOR DETECTING RADIATION FROM A FORM FOR DETERMINING DEVIATIONS OR ERRORS ON A SURFACE OF THE SAME
SE412286B (en) * 1978-07-10 1980-02-25 Saab Scania Ab SET AND DEVICE FOR PHOTOELECTRIC DIMENSION OF WIDES OR SIMILAR GEOMETRICALLY DETERMINED FORMS
JPS5819109B2 (en) * 1978-11-10 1983-04-16 肇産業株式会社 Pattern discrimination method

Also Published As

Publication number Publication date
FI853204L (en) 1985-08-21
CA1220275A (en) 1987-04-07
FI853204A0 (en) 1985-08-21
SE8304117L (en) 1985-01-23
EP0181332A1 (en) 1986-05-21
WO1985000657A1 (en) 1985-02-14

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