ES2069752T3 - Aparato para la determinacion automatica y no destructiva de la clase de propiedades mecanicas estandarizadas de una muestra de material higroscopico. - Google Patents

Aparato para la determinacion automatica y no destructiva de la clase de propiedades mecanicas estandarizadas de una muestra de material higroscopico.

Info

Publication number
ES2069752T3
ES2069752T3 ES90916229T ES90916229T ES2069752T3 ES 2069752 T3 ES2069752 T3 ES 2069752T3 ES 90916229 T ES90916229 T ES 90916229T ES 90916229 T ES90916229 T ES 90916229T ES 2069752 T3 ES2069752 T3 ES 2069752T3
Authority
ES
Spain
Prior art keywords
class
pct
microprocessor
mechanical properties
sample
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
ES90916229T
Other languages
English (en)
Inventor
Jean-Luc Sandoz
Alain Roulet
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.)
Sandes SA
Original Assignee
Sandes SA
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 Sandes SA filed Critical Sandes SA
Application granted granted Critical
Publication of ES2069752T3 publication Critical patent/ES2069752T3/es
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
    • G01N29/32—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise
    • G01N29/326—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise compensating for temperature variations
    • 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
    • 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
    • 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
    • G01N2291/02845—Humidity, wetness
    • 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
    • G01N2291/02881—Temperature
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

DOS CABEZAS (2, 3) COMPRENDE CADA UNA TRES SONDAS PARA MEDIR LA VELOCIDAD DE PROPAGACION DE ONDAS ULTRASONICAS EN UNA VIGA DE PRUEBA (1), EL GRADO DE HUMEDAD Y LA TEMPERATURA EN ESTA VIGA, EN COOPERACION CON UN MODULO (35) DE MICROPROCESADOR (31) Y DE MEMORIAS (32, 33, 34). EL MICROPROCESADOR CALCULA LA VELOCIDAD DE PROPAGACION MEDIDA DE LAS ONDAS ULTRASONICAS Y ESTA VELOCIDAD ESTANDAR RESPECTO DE UNA TEMPERATURA ESTANDAR (POR EJEMPLO 20 C), ASI COMO ESTA MISMA VELOCIDAD, ESTANDAR RESPECTO DE UN VALOR ESTANDAR (DE POR EJEMPLO 15%) DEL GRADO DE HUMEDAD. SOBRE ESTA BASE, EL MICROPROCESADOR BUSCA EN QUE CLASE DE PROPIEDADES MECANICAS ESTANDARES SE ENCUENTRA EL MATERIAL DE LA VIGA (1), BUSCANDO, EN UNA TABLA MEMORIZADA DE LOS VALORES LIMITES DE PROPAGACION DE ESTAS ONDAS EN EL MATERIAL CONSIDERADO, EN QUE CLASE SE ENCUENTRA EL VALOR DE DICHA VELOCIDAD DE PROPAGACION ESTANDAR. EL APARATO PERMITE LA DETERMINACION AUTOMATICA Y NO DESTRUCTIVO, DE LA CLASE, ELIMINANDO EL FACTOR PERSONAL.
ES90916229T 1989-12-01 1990-11-21 Aparato para la determinacion automatica y no destructiva de la clase de propiedades mecanicas estandarizadas de una muestra de material higroscopico. Expired - Lifetime ES2069752T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH431789 1989-12-01

Publications (1)

Publication Number Publication Date
ES2069752T3 true ES2069752T3 (es) 1995-05-16

Family

ID=4273829

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90916229T Expired - Lifetime ES2069752T3 (es) 1989-12-01 1990-11-21 Aparato para la determinacion automatica y no destructiva de la clase de propiedades mecanicas estandarizadas de una muestra de material higroscopico.

Country Status (8)

Country Link
US (1) US5224381A (es)
EP (1) EP0456776B1 (es)
JP (1) JPH04503862A (es)
AT (1) ATE117085T1 (es)
CA (1) CA2045462A1 (es)
DE (1) DE69016009T2 (es)
ES (1) ES2069752T3 (es)
WO (1) WO1991008477A2 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5307679A (en) * 1992-03-25 1994-05-03 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for evaluating the drying properties of un-dried wood
JPH07239322A (ja) * 1993-04-21 1995-09-12 Mas Fab Gustav Eirich 型砂の成型特性を確定する方法と装置
ES2110362B1 (es) * 1995-06-21 1998-09-01 Tecal Centro De Tecnologia De Procedimiento no destructivo para la medida automatizada de parametros estructurales en materiales ceramicos en verde.
FR2758883B1 (fr) * 1997-01-24 1999-08-20 France Telecom Procede de controle de l'etat de poteaux en bois de support d'une ligne et dispositif pour la mise en oeuvre de ce procede
AU763438B2 (en) * 1998-08-24 2003-07-24 Fibre-Gen Instruments Limited Method of selecting and/or processing wood according to fibre characteristics
US6293152B1 (en) 1998-09-02 2001-09-25 Weyerhaeuser Company Method for determining twist potential in wood
US6308571B1 (en) 1998-09-02 2001-10-30 Weyerhaeuser Company Method for determining crook potential in wood
WO2000012230A1 (en) 1998-09-02 2000-03-09 Weyerhaeuser Company Method for determining warp potential in wood
US6769306B2 (en) * 1998-12-17 2004-08-03 Carter Holt Harvey Limited Log cutting procedures
EP1070961A1 (en) * 1999-07-19 2001-01-24 BRITISH TELECOMMUNICATIONS public limited company Test apparatus
NZ507297A (en) * 2000-10-03 2003-01-31 Ralph Lindsay Boardman Non-destructive testing of wooden members for their strength characteristics using sound or shock waves
US7327132B2 (en) * 2005-08-15 2008-02-05 University Of Denver Testing procedure for evaluating diffusion and leakage currents in insulators
FR2893416B1 (fr) * 2005-11-14 2008-05-16 Concepts Bois Structure Sarl Procede et dispositif pour determiner la qualite, classer et trier un materiau hygroscopique
WO2008074929A1 (fr) * 2006-12-21 2008-06-26 Tecsan Sarl Procédé et dispositif pour déterminer la qualité, classer et trier un matériau hygroscopique
DE102007049931A1 (de) 2007-10-18 2009-04-23 Pharmatech Gmbh Vorrichtung und Verfahren zur kontinuierlichen Herstellung von sphärischen Pulveragglomeraten
CN102706963B (zh) * 2011-06-16 2014-10-22 王立海 古树/古建筑木结构内部腐朽应力波无损探测装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740032A (en) * 1954-04-08 1956-03-27 George J Bouyoucos Electric hygrometer
US2959959A (en) * 1958-06-09 1960-11-15 Gulton Ind Inc Humidity measuring system
SU145784A1 (ru) * 1959-11-23 1961-11-30 Л.М. Юданин Электронный влагомер
US3844163A (en) * 1973-04-17 1974-10-29 Automation Ind Inc Ultrasonic velocity meter
US3979581A (en) * 1974-02-26 1976-09-07 Hauni-Werke Korber & Co., Kg Method and arrangement for determining the mass of tobacco or the like by capacitance and attenuation measurements in a resonant high frequency oscillator circuit
AT353504B (de) * 1978-06-08 1979-11-26 Vanicek Viktor Vorrichtung zum messen der feuchte eines hygro- skopischen materials, insbesondere holz
US4201093A (en) * 1978-07-20 1980-05-06 Metriguard, Inc. Ultrasonic sheet material testing apparatus
US4413518A (en) * 1981-07-20 1983-11-08 Ndt Instruments, Inc. Apparatus and method for measuring the extension of bolts under stress
US4580233A (en) * 1982-09-22 1986-04-01 Weyerhaeuser Company Method of measuring moisture content of dielectric materials
EP0322446B1 (en) * 1987-05-26 1992-02-19 Weyerhaeuser Company Bond strength measurement of composite panel products
US4876889A (en) * 1988-07-05 1989-10-31 Parthasarathy Shakkottai Acoustic humidity sensor
SU1632602A2 (ru) * 1989-03-01 1991-03-07 Магнитогорский горно-металлургический институт им.Г.И.Носова Штамп дл получени удлиненных поковок

Also Published As

Publication number Publication date
EP0456776A1 (fr) 1991-11-21
WO1991008477A2 (fr) 1991-06-13
DE69016009D1 (de) 1995-02-23
JPH04503862A (ja) 1992-07-09
US5224381A (en) 1993-07-06
EP0456776B1 (fr) 1995-01-11
DE69016009T2 (de) 1995-07-20
WO1991008477A3 (fr) 1991-08-08
CA2045462A1 (fr) 1991-06-02
ATE117085T1 (de) 1995-01-15

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