CA2321576C - Appareil ultrasonore pour caracteriser des elements en bois au moyen d'une mesure par distorsion d'onde - Google Patents

Appareil ultrasonore pour caracteriser des elements en bois au moyen d'une mesure par distorsion d'onde Download PDF

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Publication number
CA2321576C
CA2321576C CA002321576A CA2321576A CA2321576C CA 2321576 C CA2321576 C CA 2321576C CA 002321576 A CA002321576 A CA 002321576A CA 2321576 A CA2321576 A CA 2321576A CA 2321576 C CA2321576 C CA 2321576C
Authority
CA
Canada
Prior art keywords
ultrasonic
ultrasonic wave
wooden member
wooden
transducers
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.)
Expired - Lifetime
Application number
CA002321576A
Other languages
English (en)
Other versions
CA2321576A1 (fr
Inventor
Mark E. Schafer
Robert J. Ross
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.)
USNR LLC
United States Department of Agriculture
Original Assignee
USNR LLC
United States Department of Agriculture
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
Priority claimed from US09/151,432 external-priority patent/US6029522A/en
Priority claimed from US09/197,165 external-priority patent/US6295907B1/en
Priority claimed from US09/196,674 external-priority patent/US6092418A/en
Application filed by USNR LLC, United States Department of Agriculture filed Critical USNR LLC
Priority to CA002597126A priority Critical patent/CA2597126C/fr
Priority to CA002618545A priority patent/CA2618545C/fr
Publication of CA2321576A1 publication Critical patent/CA2321576A1/fr
Application granted granted Critical
Publication of CA2321576C publication Critical patent/CA2321576C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2493—Wheel shaped probes
    • 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
    • G01N2291/042—Wave modes
    • G01N2291/0421—Longitudinal waves
    • 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
    • G01N2291/042—Wave modes
    • G01N2291/0422—Shear waves, transverse waves, horizontally polarised waves
    • 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
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • 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
    • 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
    • G01N2291/103—Number of transducers one emitter, two or more receivers
    • 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
    • G01N2291/105—Number of transducers two or more emitters, two or more receivers
    • 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
    • G01N2291/26—Scanned objects
    • G01N2291/263—Surfaces
    • G01N2291/2634—Surfaces cylindrical from outside

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth 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 Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

L'invention concerne une technique ultrasonore servant à mesurer des éléments en bois (10) pour y identifier des anomalies internes localisées sensiblement plus petites que la largeur totale du faisceau ultrasonore (48).
CA002321576A 1998-02-26 1999-02-23 Appareil ultrasonore pour caracteriser des elements en bois au moyen d'une mesure par distorsion d'onde Expired - Lifetime CA2321576C (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002597126A CA2597126C (fr) 1998-02-26 1999-02-23 Methode et dispositif d'observation en ligne du sciage des billots
CA002618545A CA2618545C (fr) 1998-02-26 1999-02-23 Methode et appareil pour la detection et la caracterisation de fentes dans des buches

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
US7609098P 1998-02-26 1998-02-26
US60/076,090 1998-02-26
US8201898P 1998-04-16 1998-04-16
US8201298P 1998-04-16 1998-04-16
US60/082,012 1998-04-16
US60/082,018 1998-04-16
US09/151,432 US6029522A (en) 1998-02-26 1998-09-11 Ultrasonic apparatus for characterizing wooden members
US09/151,432 1998-09-11
US09/197,165 US6295907B1 (en) 1998-04-16 1998-11-20 Method and apparatus for on-line monitoring of log sawing
US09/197,165 1998-11-20
US09/196,674 US6092418A (en) 1998-04-16 1998-11-20 Method and apparatus for detecting and characterizing splits in logs
US09/196,674 1998-11-20
PCT/US1999/003919 WO1999044049A1 (fr) 1998-02-26 1999-02-23 Appareil ultrasonore pour caracteriser des elements en bois au moyen d'une mesure par distorsion d'onde

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CA002597126A Division CA2597126C (fr) 1998-02-26 1999-02-23 Methode et dispositif d'observation en ligne du sciage des billots
CA002618545A Division CA2618545C (fr) 1998-02-26 1999-02-23 Methode et appareil pour la detection et la caracterisation de fentes dans des buches

Publications (2)

Publication Number Publication Date
CA2321576A1 CA2321576A1 (fr) 1999-09-02
CA2321576C true CA2321576C (fr) 2007-12-04

Family

ID=27557134

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002321576A Expired - Lifetime CA2321576C (fr) 1998-02-26 1999-02-23 Appareil ultrasonore pour caracteriser des elements en bois au moyen d'une mesure par distorsion d'onde

Country Status (6)

Country Link
EP (1) EP1057011A4 (fr)
AU (1) AU754908B2 (fr)
CA (1) CA2321576C (fr)
NO (1) NO20004275L (fr)
NZ (1) NZ506565A (fr)
WO (1) WO1999044049A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116399270B (zh) * 2023-05-30 2025-08-29 海南海胶智造科技有限公司 一种无损连续测量橡胶树皮厚度的装置及其测量方法
CN118013238B (zh) * 2024-04-09 2024-06-21 西安思坦仪器股份有限公司 油水井智能注采外置超声流量测量装置及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013257A (ja) * 1983-07-04 1985-01-23 Fujikura Ltd 超音波診断方法
US5024091A (en) * 1986-03-25 1991-06-18 Washington State University Research Foundation, Inc. Non-destructive evaluation of structural members
GB8622731D0 (en) * 1986-09-20 1986-10-29 Bio Kil Chemicals Ltd Testing timbers
US5097881A (en) * 1991-04-25 1992-03-24 Blount, Inc. Ultrasonic log grading
US5237870A (en) * 1991-09-20 1993-08-24 Metriguard Inc. Stress wave method and apparatus for estimating the structural quality of finger joints
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

Also Published As

Publication number Publication date
NO20004275D0 (no) 2000-08-25
EP1057011A1 (fr) 2000-12-06
AU754908B2 (en) 2002-11-28
NZ506565A (en) 2002-10-25
WO1999044049A1 (fr) 1999-09-02
NO20004275L (no) 2000-10-18
CA2321576A1 (fr) 1999-09-02
EP1057011A4 (fr) 2003-08-13
AU2783299A (en) 1999-09-15

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Effective date: 20190225