FR2662502B1 - METHOD FOR DETERMINING THE ANGLE OF THE WOOD THREAD BY ULTRASOUND AND DEVICE FOR CARRYING OUT THE METHOD. - Google Patents

METHOD FOR DETERMINING THE ANGLE OF THE WOOD THREAD BY ULTRASOUND AND DEVICE FOR CARRYING OUT THE METHOD.

Info

Publication number
FR2662502B1
FR2662502B1 FR9006589A FR9006589A FR2662502B1 FR 2662502 B1 FR2662502 B1 FR 2662502B1 FR 9006589 A FR9006589 A FR 9006589A FR 9006589 A FR9006589 A FR 9006589A FR 2662502 B1 FR2662502 B1 FR 2662502B1
Authority
FR
France
Prior art keywords
ultrasound
determining
carrying
angle
wood thread
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
FR9006589A
Other languages
French (fr)
Other versions
FR2662502A1 (en
Inventor
Bucur Voichita
Perrin Jean-Rene
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.)
Institut National de la Recherche Agronomique INRA
Original Assignee
Institut National de la Recherche Agronomique INRA
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 Institut National de la Recherche Agronomique INRA filed Critical Institut National de la Recherche Agronomique INRA
Priority to FR9006589A priority Critical patent/FR2662502B1/en
Priority to PCT/FR1991/000393 priority patent/WO1991019194A1/en
Publication of FR2662502A1 publication Critical patent/FR2662502A1/en
Application granted granted Critical
Publication of FR2662502B1 publication Critical patent/FR2662502B1/en
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
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0098—Plants or trees
    • 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
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • 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
    • G01N2291/02—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
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Wood Science & Technology (AREA)
  • Botany (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
FR9006589A 1990-05-28 1990-05-28 METHOD FOR DETERMINING THE ANGLE OF THE WOOD THREAD BY ULTRASOUND AND DEVICE FOR CARRYING OUT THE METHOD. Expired - Lifetime FR2662502B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9006589A FR2662502B1 (en) 1990-05-28 1990-05-28 METHOD FOR DETERMINING THE ANGLE OF THE WOOD THREAD BY ULTRASOUND AND DEVICE FOR CARRYING OUT THE METHOD.
PCT/FR1991/000393 WO1991019194A1 (en) 1990-05-28 1991-05-15 Method for ultrasonically detecting the angle of the grain in wood, and device for implementing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9006589A FR2662502B1 (en) 1990-05-28 1990-05-28 METHOD FOR DETERMINING THE ANGLE OF THE WOOD THREAD BY ULTRASOUND AND DEVICE FOR CARRYING OUT THE METHOD.

Publications (2)

Publication Number Publication Date
FR2662502A1 FR2662502A1 (en) 1991-11-29
FR2662502B1 true FR2662502B1 (en) 1992-09-11

Family

ID=9396990

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9006589A Expired - Lifetime FR2662502B1 (en) 1990-05-28 1990-05-28 METHOD FOR DETERMINING THE ANGLE OF THE WOOD THREAD BY ULTRASOUND AND DEVICE FOR CARRYING OUT THE METHOD.

Country Status (2)

Country Link
FR (1) FR2662502B1 (en)
WO (1) WO1991019194A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU769197B2 (en) 1998-09-02 2004-01-22 Weyerhaeuser Company Method for determining warp potential in wood
US6293152B1 (en) 1998-09-02 2001-09-25 Weyerhaeuser Company Method for determining twist potential in wood
JP2002544481A (en) * 1999-05-11 2002-12-24 リン、フランク Material inspection device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA943187A (en) * 1972-06-29 1974-03-05 Her Majesty In Right Of Canada As Represented By The Minister Of The Env Ironment Wood slope-of-grain indicator
US4926350A (en) * 1987-09-14 1990-05-15 Metriguard, Inc. Non-destructive testing methods for lumber

Also Published As

Publication number Publication date
WO1991019194A1 (en) 1991-12-12
FR2662502A1 (en) 1991-11-29

Similar Documents

Publication Publication Date Title
FR2663140B1 (en) CONTROL METHOD AND DEVICE FOR THE FLOW OF SEQUENTIAL INFORMATION.
BE894760A (en) METHOD AND APPARATUS FOR DETECTING THEFT BY DETECTING THE MITIGATION OF A RESONANT CIRCUIT
FR2747027B1 (en) METHOD FOR DETERMINING THE DEPTH OF ANESTHESIA AND DEVICE FOR CARRYING OUT SAID METHOD
FR2497956B1 (en) DEVICE AND METHOD FOR DETECTION OF THE CONTINUOUS COMPONENT OF AN ALTERNATING CURVE
FR2660208B1 (en) METHOD AND DEVICE FOR CONDENSING SUBSTANCES IN THE STATE OF STEAM.
FR2554996B1 (en) METHOD AND DEVICE FOR DETERMINING THE OPTIMAL POSITION OF THE REFERENCE COEFFICIENT OF AN ADAPTIVE EQUALIZER
FR2540247B1 (en) METHOD AND APPARATUS FOR DETECTING CHANGES IN COMPOSITION WITHIN A MEDIUM USING ULTRASOUND
FR2665359B1 (en) PROCESS FOR INCREASING THE VOLUME OF A HAIR AND ATTACHING IT SIMULTANEOUSLY, AND DEVICE FOR IMPLEMENTING SAME.
FR2684784B1 (en) METHOD AND DEVICE FOR GENERATING A SIGNAL REPRESENTING THE CROSS-MOTION OF A VEHICLE.
FR2615616B1 (en) METHOD AND DEVICE FOR DETERMINING THE PASSAGE
FR2660435B1 (en) METHOD AND DEVICE FOR COLLECTING WITHIN A SUSPENSION OF SAMPLES FROM THE LIQUID PHASE.
FR2571874B1 (en) COUNTING METHOD AND DEVICE FOR IMPLEMENTING THE METHOD
FR2632104B1 (en) METHOD FOR MONITORING SITES ASSIGNED TO THE DEPOSIT OF OBJECTS AND DEVICE FOR IMPLEMENTING SAME
FR2675538B1 (en) METHOD AND DEVICE FOR DETERMINING THE AGING STATE OF A CATALYST.
FR2543296B1 (en) PROCESS AND DEVICE FOR THE PREPARATION OF A MEAT SAMPLE FOR THE DETERMINATION OF ITS COMPOSITION
FR2662502B1 (en) METHOD FOR DETERMINING THE ANGLE OF THE WOOD THREAD BY ULTRASOUND AND DEVICE FOR CARRYING OUT THE METHOD.
FR2654513B1 (en) METHOD AND DEVICE FOR DETERMINING THE CHARACTERISTICS OF A LENS, AND IN PARTICULAR OF ITS POWER.
FR2515351B1 (en) METHOD FOR DETERMINING THE DEGREE OF WEAR OF BANK NOTES AND DEVICE FOR CARRYING OUT SAID METHOD
FR2712702B1 (en) Method and device for determining the direction of a signal source.
FR2661753B1 (en) METHOD FOR IMPROVING THE PRECISION OF IMPEDANCE SENSORS IN RADIOSONDES.
FR2670147B1 (en) WELDING-DIFFUSION-DYNAMIC PROCESS OF STEEL AND DEVICE FOR IMPLEMENTING THE PROCESS.
FR2683036B1 (en) METHOD AND DEVICE FOR DETERMINING THE ORIENTATION OF A SOLID.
FR2610418B1 (en) MAGNETIC METHOD FOR DETERMINING THE PATH OF A MOBILE OBJECT TO JOIN A MAGNETIC OBJECT, FIXED OR MOBILE, AND DEVICE FOR IMPLEMENTING THE METHOD
FR2657166B1 (en) METHOD AND APPARATUS FOR DETERMINING TOTAL NITROGEN.
FR2476301B1 (en) DEVICE FOR TESTING PIPES AND THE LIKE BY PASSING BUFFER CALIBERS