SE455023B - Forfarande for metning av treytors egenskaper - Google Patents

Forfarande for metning av treytors egenskaper

Info

Publication number
SE455023B
SE455023B SE8200407A SE8200407A SE455023B SE 455023 B SE455023 B SE 455023B SE 8200407 A SE8200407 A SE 8200407A SE 8200407 A SE8200407 A SE 8200407A SE 455023 B SE455023 B SE 455023B
Authority
SE
Sweden
Prior art keywords
radiation
wood
depolarization
intensity
imin
Prior art date
Application number
SE8200407A
Other languages
English (en)
Swedish (sv)
Other versions
SE8200407L (sv
Inventor
K Hirvonen
A Karonen
Original Assignee
Altim Control Ky
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 Altim Control Ky filed Critical Altim Control Ky
Publication of SE8200407L publication Critical patent/SE8200407L/
Publication of SE455023B publication Critical patent/SE455023B/sv

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
SE8200407A 1981-02-10 1982-01-26 Forfarande for metning av treytors egenskaper SE455023B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI810371A FI63835C (fi) 1981-02-10 1981-02-10 Foerfarande foer identifiering av ett virkes ytegenskaper

Publications (2)

Publication Number Publication Date
SE8200407L SE8200407L (sv) 1982-08-11
SE455023B true SE455023B (sv) 1988-06-13

Family

ID=8514109

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8200407A SE455023B (sv) 1981-02-10 1982-01-26 Forfarande for metning av treytors egenskaper

Country Status (9)

Country Link
US (1) US4482250A (fr)
AT (1) AT394780B (fr)
CA (1) CA1168892A (fr)
DE (1) DE3200810A1 (fr)
FI (1) FI63835C (fr)
FR (1) FR2499717A1 (fr)
NO (1) NO152354C (fr)
SE (1) SE455023B (fr)
SU (1) SU1170978A3 (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
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
FI74815C (fi) * 1986-01-20 1988-03-10 Altim Control Ky Foerfarande foer identifiering av en traeytas ytegenskaper.
US4893932A (en) * 1986-05-02 1990-01-16 Particle Measuring Systems, Inc. Surface analysis system and method
US4831545A (en) * 1987-06-26 1989-05-16 Weyerhaeuser Company Method for determination of pith location relative to lumber surfaces
US4916629A (en) * 1987-06-26 1990-04-10 Weyerhaeuser Company Method for determination of pith location relative to lumber surfaces
US4890926A (en) * 1987-12-21 1990-01-02 Miles Inc. Reflectance photometer
JPH0774788B2 (ja) * 1988-03-28 1995-08-09 株式会社堀場製作所 異物有無検査装置
US4919534A (en) * 1988-09-30 1990-04-24 Environmental Products Corp. Sensing of material of construction and color of containers
US4972091A (en) * 1989-05-16 1990-11-20 Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee Method and apparatus for detecting the presence of flaws in a moving sheet of material
SE466420B (sv) * 1989-11-14 1992-02-10 Svenska Traeforskningsinst Foerfarande och anordning foer detektering av bark samt bestaemning av barkningsgrad paa ved eller i flis
US5102222A (en) * 1990-02-08 1992-04-07 Harmonic Lightwaves, Inc. Light wave polarization determination using a hybrid system
FR2665959B1 (fr) * 1990-08-16 1994-01-14 Oreal Appareil destine a permettre d'evaluer la brillance d'une surface, en particulier de la peau.
US5244814A (en) * 1991-05-20 1993-09-14 Forintek Canada Corporation Decay detection in wood
DE4317513A1 (de) * 1993-05-26 1994-12-01 Select Ingenieurgesellschaft F Verfahren und Vorrichtung zur selektiven Trennung von Körpern und Anwendung des Verfahrens
FR2707007B1 (fr) * 1993-06-24 1995-08-25 France Etat Armement
US5502559A (en) * 1993-11-01 1996-03-26 Environmental Products Corporation Apparatus and method for detection of material used in construction of containers and color of same
GB2285861A (en) * 1994-01-19 1995-07-26 Peter Charles Matthews Optical detection of grain defects in lumber
JP3358099B2 (ja) * 1994-03-25 2002-12-16 オムロン株式会社 光学式センサ装置
US5835220A (en) * 1995-10-27 1998-11-10 Nkk Corporation Method and apparatus for detecting surface flaws
US5742392A (en) * 1996-04-16 1998-04-21 Seymour Light, Inc. Polarized material inspection apparatus
US6624883B1 (en) * 2000-09-28 2003-09-23 National Research Council Of Canada Method of and apparatus for determining wood grain orientation
US7549367B2 (en) * 2004-01-20 2009-06-23 Utah State University Research Foundation Control system for a weapon mount
CA2478757A1 (fr) * 2004-08-06 2006-02-06 Mario Talbot Detection du bois bleui et de la pourriture sur le bois d'oeuvre
DE102005021649B4 (de) * 2005-05-06 2007-04-12 Tropf, Hermann Optische Höhenabtastung einer Oberfläche
BRPI0920688A2 (pt) * 2008-10-03 2015-12-29 Fpinnovations aparelho e método para determinar um ou mais parâmetros de operação ótimos para descascar madeira, sistemas de descascamento para descascar madeira e a superfície de madeira, aparelho para otimização contínua em tempo real de descascar uma superfície de madeira com um descascador, e, método para otimizar continuamente descascamento de uma superfície de madeira com um descascador em tempo real
EP2454580A1 (fr) 2009-07-15 2012-05-23 Microtec S.r.l. Procédé et appareil pour identifier l'orientation de fibres de bois
FR2994263B1 (fr) * 2012-08-02 2018-09-07 Vit Procede et dispositif d'identification de materiaux dans une scene
EP3528047A1 (fr) * 2018-02-14 2019-08-21 ASML Netherlands B.V. Procédé et appareil permettant de mesurer un paramètre d'intérêt au moyen de techniques de détection de plan d'image

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3060793A (en) * 1960-07-22 1962-10-30 Arthur N Wells Apparatus for determining ellipticity of surface reflected plane polarized light
CH447630A (fr) * 1965-06-16 1967-11-30 Hitachi Ltd Procédé pour la détection d'irrégularités à la surface d'un objet et appareil pour la mise en oeuvre de ce procédé
US3474254A (en) * 1968-02-26 1969-10-21 Sick Erwin Photoelectronic apparatus for scanning textile material
FI45799C (fi) * 1971-03-23 1972-09-11 Valmet Oy Menetelmä paperin tai vastaavan kuituorientaation määräämiseksi paperi sta heijastuneen valon avulla.
GB1428372A (en) * 1972-06-09 1976-03-17 Soctt R N Optical apparatus for determining deviations from a predeter mined form of a surface
US3992571A (en) * 1973-05-11 1976-11-16 National Research Development Corporation Differential optical polarization detectors
GB1488841A (en) * 1974-01-18 1977-10-12 Plessey Co Ltd Optical detection apparatus
SE385048B (sv) * 1974-08-05 1976-05-31 Svenska Traeforskningsinst Forfarande for metning av en ytas topografi
DE2534023C2 (de) * 1975-07-30 1985-03-14 Plessey Overseas Ltd., Ilford, Essex Verfahren zum Feststellen von Fehlern in gesägtem oder gehobeltem Holz und Vorrichtung zur Durchführung des Verfahrens
US4030830A (en) * 1976-01-05 1977-06-21 Atlantic Research Corporation Process and apparatus for sensing defects on a smooth surface
GB1580196A (en) * 1976-05-27 1980-11-26 Ferranti Ltd Gloss measuring surface inspection systems
FI57490C (fi) * 1978-06-01 1980-08-11 Innotec Oy Foerfarande foer bestaemning av snedfibrigheten i virke i synnerhet i saogat virke
JPS55116211A (en) * 1979-02-28 1980-09-06 Matsushita Electric Works Ltd Inspection for checkered pattern

Also Published As

Publication number Publication date
NO152354B (no) 1985-06-03
DE3200810C2 (fr) 1993-04-29
ATA38182A (de) 1991-11-15
FI810371L (fi) 1982-08-11
NO152354C (no) 1985-09-11
FR2499717A1 (fr) 1982-08-13
FR2499717B1 (fr) 1985-04-12
FI63835C (fi) 1983-08-10
FI63835B (fi) 1983-04-29
AT394780B (de) 1992-06-25
NO820379L (no) 1982-08-11
SE8200407L (sv) 1982-08-11
DE3200810A1 (de) 1982-08-19
US4482250A (en) 1984-11-13
SU1170978A3 (ru) 1985-07-30
CA1168892A (fr) 1984-06-12

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