FR3075947B1 - Methode et dispositif de determination de l'epaisseur d'une couche traitee d'une piece metallique - Google Patents

Methode et dispositif de determination de l'epaisseur d'une couche traitee d'une piece metallique Download PDF

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Publication number
FR3075947B1
FR3075947B1 FR1762756A FR1762756A FR3075947B1 FR 3075947 B1 FR3075947 B1 FR 3075947B1 FR 1762756 A FR1762756 A FR 1762756A FR 1762756 A FR1762756 A FR 1762756A FR 3075947 B1 FR3075947 B1 FR 3075947B1
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FR
France
Prior art keywords
determining
thickness
metal part
treated layer
representative
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.)
Active
Application number
FR1762756A
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English (en)
Other versions
FR3075947A1 (fr
Inventor
Jacques Rivenez
Naim Samet
William Cailly
Benoit Dupont
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.)
Centre Technique des Industries Mecaniques CETIM
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Centre Technique des Industries Mecaniques CETIM
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.)
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Publication date
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Priority to FR1762756A priority Critical patent/FR3075947B1/fr
Publication of FR3075947A1 publication Critical patent/FR3075947A1/fr
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Publication of FR3075947B1 publication Critical patent/FR3075947B1/fr
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
    • 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
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/449—Statistical methods not provided for in G01N29/4409, e.g. averaging, smoothing and interpolation
    • 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
    • G01N2291/0234—Metals, e.g. steel
    • 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
    • G01N2291/10—Number of transducers
    • G01N2291/101—Number of transducers one transducer

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • Acoustics & Sound (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

L'invention concerne un dispositif et une méthode de détermination de l'épaisseur d'une couche traitée (12) d'une pièce métallique (14). Ladite couche (12) présentant une surface (16) et un fond (15), ladite méthode comprenant les étapes : a) on émet une onde ultrasonore et elle se propage à travers ladite pièce ; b) on recueille un signal d'écho présentant une première portion et une seconde portion ; et, c) on évalue, à partir de ladite première portion, une première mesure de distance (I) représentative de la position relative de ladite surface (16), et à partir de ladite seconde portion, une seconde mesure de distance (e) représentative de la position relative dudit fond (15). L'étape c) comprend les sous-étapes suivantes : α) on détermine une courbe enveloppe (46) dudit signal d'écho ; β) on choisit une fonction paramétrée représentative d'une zone de ladite courbe enveloppe ; et, γ) on détermine par itération les paramètres de ladite fonction paramétrée.
FR1762756A 2017-12-21 2017-12-21 Methode et dispositif de determination de l'epaisseur d'une couche traitee d'une piece metallique Active FR3075947B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1762756A FR3075947B1 (fr) 2017-12-21 2017-12-21 Methode et dispositif de determination de l'epaisseur d'une couche traitee d'une piece metallique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1762756A FR3075947B1 (fr) 2017-12-21 2017-12-21 Methode et dispositif de determination de l'epaisseur d'une couche traitee d'une piece metallique
FR1762756 2017-12-21

Publications (2)

Publication Number Publication Date
FR3075947A1 FR3075947A1 (fr) 2019-06-28
FR3075947B1 true FR3075947B1 (fr) 2020-01-03

Family

ID=61655929

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1762756A Active FR3075947B1 (fr) 2017-12-21 2017-12-21 Methode et dispositif de determination de l'epaisseur d'une couche traitee d'une piece metallique

Country Status (1)

Country Link
FR (1) FR3075947B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5438872A (en) * 1991-06-21 1995-08-08 Canon Kabushiki Kaisha Measuring method and apparatus using a lamb wave
JPH0894344A (ja) * 1994-07-26 1996-04-12 Shinko Kensa Service Kk 超音波の横波を利用した層厚測定装置
WO1999025249A1 (fr) * 1997-11-14 1999-05-27 Colorado Seminary Systeme par ultrasons de classement de la viande
JP4679319B2 (ja) * 2005-09-22 2011-04-27 非破壊検査株式会社 超音波による組織変化の検出方法及び検出装置
DE102011011530B4 (de) * 2011-02-17 2013-05-08 Karlsruher Institut für Technologie Verfahren zur Reduktion von Ultraschalldaten

Also Published As

Publication number Publication date
FR3075947A1 (fr) 2019-06-28

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