NZ506565A - Ultrasonic apparatus for characterizing wooden members using a measurement of wave distortion - Google Patents

Ultrasonic apparatus for characterizing wooden members using a measurement of wave distortion

Info

Publication number
NZ506565A
NZ506565A NZ506565A NZ50656599A NZ506565A NZ 506565 A NZ506565 A NZ 506565A NZ 506565 A NZ506565 A NZ 506565A NZ 50656599 A NZ50656599 A NZ 50656599A NZ 506565 A NZ506565 A NZ 506565A
Authority
NZ
New Zealand
Prior art keywords
measurement
characterizing
ultrasonic apparatus
wave distortion
wooden members
Prior art date
Application number
NZ506565A
Inventor
Mark E Schafer
Robert J Ross
Original Assignee
Us Natural Resources
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 Us Natural Resources filed Critical Us Natural Resources
Publication of NZ506565A publication Critical patent/NZ506565A/en

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

Ultrasonic technique is applied to the measurement of wooden member (10) to identify localized anomalies internal to the wooden member (10) substantially smaller than the full width of the ultrasonic beam (48).
NZ506565A 1998-02-26 1999-02-23 Ultrasonic apparatus for characterizing wooden members using a measurement of wave distortion NZ506565A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US7609098P 1998-02-26 1998-02-26
US8201898P 1998-04-16 1998-04-16
US8201298P 1998-04-16 1998-04-16
US09/151,432 US6029522A (en) 1998-02-26 1998-09-11 Ultrasonic apparatus for characterizing wooden members
US09/197,165 US6295907B1 (en) 1998-04-16 1998-11-20 Method and apparatus for on-line monitoring of log sawing
US09/196,674 US6092418A (en) 1998-04-16 1998-11-20 Method and apparatus for detecting and characterizing splits in logs
PCT/US1999/003919 WO1999044049A1 (en) 1998-02-26 1999-02-23 Ultrasonic apparatus for characterizing wooden members using a measurement of wave distortion

Publications (1)

Publication Number Publication Date
NZ506565A true NZ506565A (en) 2002-10-25

Family

ID=27557134

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ506565A NZ506565A (en) 1998-02-26 1999-02-23 Ultrasonic apparatus for characterizing wooden members using a measurement of wave distortion

Country Status (6)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118013238B (en) * 2024-04-09 2024-06-21 西安思坦仪器股份有限公司 External ultrasonic flow measurement device and method for intelligent injection and production of oil-water well

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6013257A (en) * 1983-07-04 1985-01-23 Fujikura Ltd Ultrasonic diagnosis
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
WO1999044049A1 (en) 1999-09-02
CA2321576A1 (en) 1999-09-02
NO20004275D0 (en) 2000-08-25
CA2321576C (en) 2007-12-04
EP1057011A1 (en) 2000-12-06
AU754908B2 (en) 2002-11-28
AU2783299A (en) 1999-09-15
EP1057011A4 (en) 2003-08-13
NO20004275L (en) 2000-10-18

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Legal Events

Date Code Title Description
ASS Change of ownership

Owner name: US NATURAL RESOURCES, INC., US

Free format text: OLD OWNER(S): PERCEPTRON, INC.

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