FI990712A0 - Method and apparatus for determining three-dimensional pieces such as timber dimensions and external properties - Google Patents

Method and apparatus for determining three-dimensional pieces such as timber dimensions and external properties

Info

Publication number
FI990712A0
FI990712A0 FI990712A FI990712A FI990712A0 FI 990712 A0 FI990712 A0 FI 990712A0 FI 990712 A FI990712 A FI 990712A FI 990712 A FI990712 A FI 990712A FI 990712 A0 FI990712 A0 FI 990712A0
Authority
FI
Finland
Prior art keywords
target area
determining
external properties
dimensions
line camera
Prior art date
Application number
FI990712A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI990712A (en
Inventor
Urpo Meskanen
Original Assignee
Finscan Oy
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 Finscan Oy filed Critical Finscan Oy
Priority to FI990712A priority Critical patent/FI990712A/en
Publication of FI990712A0 publication Critical patent/FI990712A0/en
Priority to PCT/FI2000/000270 priority patent/WO2000062011A1/en
Publication of FI990712A publication Critical patent/FI990712A/en

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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
    • 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
    • G01B11/024—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of diode-array scanning
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Wood Science & Technology (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The present application relates to a method and apparatus for determining the dimensions and external properties of three-dimensional objects such as sawn timber. According to the method, objects are moved in a transverse position over a target area (27), the target area (27) is illuminated, and the target area (27) is scanned by a line camera (6, 7, 8). According to the invention, the target area (27) is scanned by a line camera, advantageously by a color line camera, from at least three different directions in a single measurement station equipped with an integrated illumination system, and the dimensions and external properties of the object are determined by processing the measurement data obtained from said camera (6, 7, 8) scanning from at least three different directions.
FI990712A 1999-03-30 1999-03-30 Arrangement and apparatus for determining dimensions and external properties of three-dimensional pieces, for example, wood products FI990712A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI990712A FI990712A (en) 1999-03-30 1999-03-30 Arrangement and apparatus for determining dimensions and external properties of three-dimensional pieces, for example, wood products
PCT/FI2000/000270 WO2000062011A1 (en) 1999-03-30 2000-03-29 Method and apparatus for determination of dimensions and external properties of three-demensional objects such as timber in a transverse measurement system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI990712A FI990712A (en) 1999-03-30 1999-03-30 Arrangement and apparatus for determining dimensions and external properties of three-dimensional pieces, for example, wood products

Publications (2)

Publication Number Publication Date
FI990712A0 true FI990712A0 (en) 1999-03-30
FI990712A FI990712A (en) 2000-10-01

Family

ID=8554323

Family Applications (1)

Application Number Title Priority Date Filing Date
FI990712A FI990712A (en) 1999-03-30 1999-03-30 Arrangement and apparatus for determining dimensions and external properties of three-dimensional pieces, for example, wood products

Country Status (2)

Country Link
FI (1) FI990712A (en)
WO (1) WO2000062011A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI124426B (en) * 2012-03-02 2014-08-29 Fin Scan Oy Method and apparatus for determining three-dimensional pieces such as timber dimensions and external properties
FI125973B (en) 2012-06-27 2016-05-13 Fin Scan Oy A system for describing saws
DE102017009153B4 (en) * 2017-09-29 2021-12-09 Baumer Inspection Gmbh Arrangement and method for the inspection of moving plate-shaped objects

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207472A (en) * 1975-12-05 1980-06-10 The Bendix Corporation Lumber inspection and optimization system
GB8612038D0 (en) * 1986-05-17 1986-06-25 Tole W R Dimensional measurement of object
FI95078C (en) * 1993-11-17 1995-12-11 Cimmon Oy Method and apparatus for optically measuring the shape of elongate bodies

Also Published As

Publication number Publication date
WO2000062011A1 (en) 2000-10-19
FI990712A (en) 2000-10-01
WO2000062011A8 (en) 2001-10-11

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