AU2001240123A1 - Defect parameter for wooden members - Google Patents

Defect parameter for wooden members

Info

Publication number
AU2001240123A1
AU2001240123A1 AU2001240123A AU4012301A AU2001240123A1 AU 2001240123 A1 AU2001240123 A1 AU 2001240123A1 AU 2001240123 A AU2001240123 A AU 2001240123A AU 4012301 A AU4012301 A AU 4012301A AU 2001240123 A1 AU2001240123 A1 AU 2001240123A1
Authority
AU
Australia
Prior art keywords
wooden members
defect parameter
defect
parameter
wooden
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001240123A
Inventor
Mark E. Schafer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Perceptron Inc
Original Assignee
Perceptron Inc
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 Perceptron Inc filed Critical Perceptron Inc
Publication of AU2001240123A1 publication Critical patent/AU2001240123A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
    • G01N29/4427—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with stored values, e.g. threshold values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4445—Classification of defects
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/011—Velocity or travel time
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/015—Attenuation, scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G01N2291/0238—Wood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/048—Transmission, i.e. analysed material between transmitter and receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Signal Processing (AREA)
  • Wood Science & Technology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
AU2001240123A 2000-03-10 2001-03-09 Defect parameter for wooden members Abandoned AU2001240123A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US18865800P 2000-03-10 2000-03-10
US60188658 2000-03-10
US20330400P 2000-05-10 2000-05-10
US60203304 2000-05-10
US09/641,168 US6367330B1 (en) 2000-03-10 2000-08-17 Defect parameter for wooden members
US09641168 2000-08-17
PCT/US2001/007511 WO2001069232A1 (en) 2000-03-10 2001-03-09 Defect parameter for wooden members

Publications (1)

Publication Number Publication Date
AU2001240123A1 true AU2001240123A1 (en) 2001-09-24

Family

ID=27392458

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001240123A Abandoned AU2001240123A1 (en) 2000-03-10 2001-03-09 Defect parameter for wooden members

Country Status (3)

Country Link
US (1) US6367330B1 (en)
AU (1) AU2001240123A1 (en)
WO (1) WO2001069232A1 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6467352B2 (en) * 1998-04-16 2002-10-22 Percepton, Inc. Method and apparatus for on-line monitoring of log sawing
US6615663B2 (en) * 2000-01-28 2003-09-09 Ultrasonic Arrays, Inc. Method and apparatus for acoustic sensing
JP3962627B2 (en) * 2001-11-12 2007-08-22 正吾 田中 Non-destructive inspection method for concrete structures and other structures
ES2239500B1 (en) * 2003-03-07 2006-12-01 Consejo Sup. Investig. Cientificas DEVICE FOR THE CHARACTERIZATION OF ULTRASOUND MATERIALS WITH GAS COUPLING (AIR) AND ITS APPLICATION TO CARRY OUT A NON-DESTRUCTIVE TEST TO VERIFY THE INTEGRITY OF POROUS MEMBRANES.
US7337672B2 (en) * 2003-10-27 2008-03-04 Alcoa Inc. Method for inspecting grinding wheels
US20050087017A1 (en) * 2003-10-27 2005-04-28 Blake Robert A. Apparatus and method for inspecting grinding wheels
US7506547B2 (en) * 2004-01-26 2009-03-24 Jesmonth Richard E System and method for generating three-dimensional density-based defect map
US6968740B2 (en) * 2004-01-26 2005-11-29 Johns Manville International Inc. Systems and methods for determining an acoustic and/or thermal characteristic of a target material
KR100604415B1 (en) 2005-04-04 2006-07-25 재단법인서울대학교산학협력재단 Wood deterioration computed tomography inspection method
US7614304B2 (en) * 2006-05-16 2009-11-10 Corning Incorporated Ultrasonic testing system and method for ceramic honeycomb structures
US20070266547A1 (en) * 2006-05-16 2007-11-22 Zhiqiang Shi Pulse echo ultrasonic testing method for ceramic honeycomb structures
US8499633B2 (en) * 2006-05-16 2013-08-06 Corning Incorporated Non-contact ultrasonic testing method and device for ceramic honeycomb structures
GB2440555A (en) * 2006-07-31 2008-02-06 Quetra Ltd Acoustic testing of wooden elements
US8631769B1 (en) 2008-08-04 2014-01-21 Hurst Boiler & Welding Company, Inc. Firetube steam boiler having improved efficiency
US7908757B2 (en) 2008-10-16 2011-03-22 Hexagon Metrology, Inc. Articulating measuring arm with laser scanner
US20110112786A1 (en) * 2009-11-06 2011-05-12 Hexagon Metrology Ab Cmm with improved sensors
IT1404710B1 (en) * 2010-11-25 2013-11-29 Imal Srl EQUIPMENT FOR DETERMINING DETOURAGE
JP5705770B2 (en) * 2011-03-28 2015-04-22 トヨタ自動車株式会社 Ultrasonic measurement method and ultrasonic measurement apparatus
KR101257304B1 (en) * 2011-10-17 2013-04-23 한국건설기술연구원 Ultrasonic test apparatus for determining concrete strength and slip form method for constructing concrete structure using ultrasonic test apparatus
US9383341B2 (en) 2013-10-29 2016-07-05 Metriguard Inc. Sonic lumber tester
US20150265893A1 (en) * 2014-03-01 2015-09-24 Louis A. Ledoux, JR. System and Methods for Baseball Bat Construction
CN104101650B (en) * 2014-07-23 2016-08-17 南京农业大学 The Air Coupling formula ultrasonic detection method of a kind of tree ring and device
US10036627B2 (en) 2014-09-19 2018-07-31 Hexagon Metrology, Inc. Multi-mode portable coordinate measuring machine
CA2907295C (en) * 2014-10-09 2021-05-04 W. Daniel Hamby Scanning system for hardwood flooring
CN106970152B (en) * 2016-04-29 2019-09-03 宁波神钻工具有限公司 Carbide drill Welding quality test device
CN107024538B (en) * 2016-04-29 2019-11-05 宁波神钻工具有限公司 Ceramic tile drill bit Welding quality test device
US11079358B2 (en) * 2019-04-25 2021-08-03 Saudi Arabian Oil Company Remotely assessing real-time wooden pole integrity
US11905038B2 (en) 2020-11-18 2024-02-20 The Boeing Company Contour enforcement for line assembled fuselage segments
EP4001912A1 (en) * 2020-11-18 2022-05-25 The Boeing Company Non-destructive inspection station for aircraft fuselage sections fabricated in an assembly line
NL2028122B1 (en) * 2021-04-30 2022-11-09 Boeing Co Non-destructive inspection station for aircraft fuselage sections fabricated in an assembly line

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5024091A (en) * 1986-03-25 1991-06-18 Washington State University Research Foundation, Inc. Non-destructive evaluation of structural members
US5095465A (en) * 1990-01-05 1992-03-10 Board Of Regents The University Of Texas System In situ testing with surface seismic waves of materials having properties that change with time
US5392652A (en) * 1992-04-07 1995-02-28 Lambert, Macgill, Thomas, Inc. Method and apparatus for inspection of metal objects utilizing variable angle ultrasonic transducer
US5396799A (en) * 1992-07-13 1995-03-14 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for in situ evaluation of wooden members
US5804728A (en) 1994-09-07 1998-09-08 The Regents Of The University Of California Method and apparatus for non-intrusively detecting hidden defects caused by bio-deterioration in living trees and round wood materials
CA2169307C (en) * 1994-12-12 2003-10-14 David A. Hutchins Non-contact characterization and inspection of materials using wideband air coupled ultrasound
US6026689A (en) * 1998-02-25 2000-02-22 Weyerhaeuser Company Log cutting optimization system
US6029522A (en) * 1998-02-26 2000-02-29 Perceptron, Inc. Ultrasonic apparatus for characterizing wooden members
US6092418A (en) * 1998-04-16 2000-07-25 Perceptron, Inc. Method and apparatus for detecting and characterizing splits in logs

Also Published As

Publication number Publication date
US6367330B1 (en) 2002-04-09
WO2001069232A1 (en) 2001-09-20

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