WO2008036839A3 - Grain angle sensor - Google Patents
Grain angle sensor Download PDFInfo
- Publication number
- WO2008036839A3 WO2008036839A3 PCT/US2007/079072 US2007079072W WO2008036839A3 WO 2008036839 A3 WO2008036839 A3 WO 2008036839A3 US 2007079072 W US2007079072 W US 2007079072W WO 2008036839 A3 WO2008036839 A3 WO 2008036839A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grain angle
- angle sensor
- respect
- laser diodes
- transverse direction
- Prior art date
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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
-
- 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
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N2021/4704—Angular selective
- G01N2021/4711—Multiangle measurement
- G01N2021/4716—Using a ring of sensors, or a combination of diaphragm and sensors; Annular sensor
-
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N2021/4735—Solid samples, e.g. paper, glass
-
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
- G01N2021/4752—Geometry
- G01N2021/4757—Geometry 0/45° or 45/0°
-
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N2021/4792—Polarisation of scatter light
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2007299719A AU2007299719B2 (en) | 2006-09-20 | 2007-09-20 | Grain angle sensor |
NZ574107A NZ574107A (en) | 2006-09-20 | 2007-09-20 | Grain angle sensor |
CA2657798A CA2657798C (en) | 2006-09-20 | 2007-09-20 | Grain angle sensor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82636506P | 2006-09-20 | 2006-09-20 | |
US60/826,365 | 2006-09-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008036839A2 WO2008036839A2 (en) | 2008-03-27 |
WO2008036839A3 true WO2008036839A3 (en) | 2008-12-11 |
Family
ID=39201283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/079072 WO2008036839A2 (en) | 2006-09-20 | 2007-09-20 | Grain angle sensor |
Country Status (5)
Country | Link |
---|---|
US (1) | US7466403B2 (en) |
AU (1) | AU2007299719B2 (en) |
CA (1) | CA2657798C (en) |
NZ (1) | NZ574107A (en) |
WO (1) | WO2008036839A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7499171B2 (en) * | 2006-09-29 | 2009-03-03 | Weyerhaeuser Nr Company | Methods for using light reflection patterns to determine diving angle of grain |
US7715011B2 (en) | 2006-09-29 | 2010-05-11 | Weyerhaeuser Nr Company | Methods for using light reflection patterns to determine location of pith and curvature of the annual ring |
US7676953B2 (en) | 2006-12-29 | 2010-03-16 | Signature Control Systems, Inc. | Calibration and metering methods for wood kiln moisture measurement |
ITBZ20110003A1 (en) * | 2011-01-17 | 2012-07-18 | Microtec Srl | METHOD AND APPERECCHIATURA FOR THE IDENTIFICATION OF THE ORIENTATION OF THE FIBERS IN THE WOOD |
US9262809B2 (en) | 2013-04-12 | 2016-02-16 | Centre De Recherche Industrielle Du Quebec | Method and apparatus for image noise filtering |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5254859A (en) * | 1987-08-21 | 1993-10-19 | Aaron U. Jones | Sawmill method and apparatus with edge scanning means |
US20020025061A1 (en) * | 2000-08-23 | 2002-02-28 | Leonard Metcalfe | High speed and reliable determination of lumber quality using grain influenced distortion effects |
US20050040085A1 (en) * | 2003-07-24 | 2005-02-24 | Carman George M. | Wood tracking by identification of surface characteristics |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4207472A (en) * | 1975-12-05 | 1980-06-10 | The Bendix Corporation | Lumber inspection and optimization system |
US4086496A (en) * | 1977-03-18 | 1978-04-25 | Sun Studs, Inc. | Method for optically measuring a cant to locate the narrowest flat side and its boundaries and manufacturing lumber therefrom |
SE412286B (en) * | 1978-07-10 | 1980-02-25 | Saab Scania Ab | SET AND DEVICE FOR PHOTOELECTRIC DIMENSION OF WIDES OR SIMILAR GEOMETRICALLY DETERMINED FORMS |
US4221974A (en) * | 1979-02-02 | 1980-09-09 | The Bendix Corporation | Lumber inspection and optimization system |
US4286880A (en) * | 1979-07-30 | 1981-09-01 | The Bendix Corporation | Scanning light beam lumber defect position system and method of using same |
US4606645A (en) * | 1984-10-29 | 1986-08-19 | Weyerhaeuser Company | Method for determining localized fiber angle in a three dimensional fibrous material |
JPS61107106A (en) * | 1984-10-30 | 1986-05-26 | Meinan Mach Works Inc | Flaw detection head for detecting surface flaw of plywood |
EP0233970B1 (en) * | 1986-02-22 | 1990-06-20 | Helmut K. Pinsch GmbH & Co. | Apparatus for testing timber |
US4916629A (en) * | 1987-06-26 | 1990-04-10 | Weyerhaeuser Company | Method for determination of pith location relative to lumber surfaces |
US4831545A (en) * | 1987-06-26 | 1989-05-16 | Weyerhaeuser Company | Method for determination of pith location relative to lumber surfaces |
US4926350A (en) * | 1987-09-14 | 1990-05-15 | Metriguard, Inc. | Non-destructive testing methods for lumber |
US4879752A (en) * | 1987-11-18 | 1989-11-07 | Macmillan Bloedel Limited | Lumber optimizer |
US4811776A (en) * | 1988-02-01 | 1989-03-14 | Bolton William E | Apparatus and method for centering logs |
US4992949A (en) * | 1989-01-27 | 1991-02-12 | Macmillan Bloedel Limited | Color sorting of lumber |
AT398174B (en) * | 1991-02-08 | 1994-10-25 | Andritz Patentverwaltung | METHOD AND DEVICE FOR SEPARATING BLEED WOOD STICKS |
US5252836A (en) * | 1991-03-07 | 1993-10-12 | U.S. Natural Resources, Inc. | Reflective grain defect scanning |
US5412220A (en) * | 1993-03-05 | 1995-05-02 | United Industrial Products, Ltd. | Optical scanning device for lumber |
FI97645C (en) * | 1993-03-15 | 1997-01-27 | Finnforest Oy | Strength grading of wood veneers |
US5421385A (en) * | 1993-10-29 | 1995-06-06 | The Coe Manufacturing Company | Method and apparatus for processing log for sawmill including end dogging carriage which rotationally repositions log to cutting position determined by computer after non-rotational scanning |
NZ270892A (en) * | 1994-08-24 | 1997-01-29 | Us Natural Resources | Detecting lumber defects utilizing optical pattern recognition algorithm |
US5644392A (en) * | 1995-09-12 | 1997-07-01 | U.S. Natural Resources, Inc. | Scanning system for lumber |
US5960104A (en) * | 1996-08-16 | 1999-09-28 | Virginia Polytechnic & State University | Defect detection system for lumber |
US6272437B1 (en) * | 1998-04-17 | 2001-08-07 | Cae Inc. | Method and apparatus for improved inspection and classification of attributes of a workpiece |
US6757058B1 (en) * | 1999-05-05 | 2004-06-29 | Lucidyne Technologies, Inc. | Fiber-optic light line for use in an inspection system |
WO2000072652A2 (en) * | 1999-05-27 | 2000-12-07 | New Zealand Forest Research Institute Limited | Method for imaging logs or stems and apparatus |
CA2380988C (en) * | 1999-07-30 | 2009-01-06 | Carter Holt Harvey Limited | Log testing apparatus |
US6624883B1 (en) * | 2000-09-28 | 2003-09-23 | National Research Council Of Canada | Method of and apparatus for determining wood grain orientation |
US6598477B2 (en) * | 2001-10-31 | 2003-07-29 | Weyerhaeuser Company | Method of evaluating logs to predict warp propensity of lumber sawn from the logs |
US20030192412A1 (en) * | 2002-04-10 | 2003-10-16 | Siempelkamp Handling Systeme Gmbh & Co. | Device for marking and analyzing defects in a system for cutting boards to size made of wood at least in part |
CA2382347A1 (en) * | 2002-05-01 | 2003-11-01 | Autolog Inc. | File station with dynamic decision zone |
-
2007
- 2007-09-20 AU AU2007299719A patent/AU2007299719B2/en active Active
- 2007-09-20 US US11/858,708 patent/US7466403B2/en active Active
- 2007-09-20 NZ NZ574107A patent/NZ574107A/en unknown
- 2007-09-20 CA CA2657798A patent/CA2657798C/en active Active
- 2007-09-20 WO PCT/US2007/079072 patent/WO2008036839A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5254859A (en) * | 1987-08-21 | 1993-10-19 | Aaron U. Jones | Sawmill method and apparatus with edge scanning means |
US20020025061A1 (en) * | 2000-08-23 | 2002-02-28 | Leonard Metcalfe | High speed and reliable determination of lumber quality using grain influenced distortion effects |
US20050040085A1 (en) * | 2003-07-24 | 2005-02-24 | Carman George M. | Wood tracking by identification of surface characteristics |
Also Published As
Publication number | Publication date |
---|---|
US20080074670A1 (en) | 2008-03-27 |
CA2657798C (en) | 2015-11-03 |
US7466403B2 (en) | 2008-12-16 |
NZ574107A (en) | 2010-11-26 |
WO2008036839A2 (en) | 2008-03-27 |
AU2007299719B2 (en) | 2011-06-02 |
AU2007299719A1 (en) | 2008-03-27 |
CA2657798A1 (en) | 2008-03-27 |
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