FR2455728A1 - PROCESS FOR THE AUTOMATIC RECOGNITION OF WIDTH, TOP CONTOUR AND SIDE CONTOUR OF SHEET OR STRIP SAMPLES IN THE TEST OF ULTRASOUND MATERIALS - Google Patents

PROCESS FOR THE AUTOMATIC RECOGNITION OF WIDTH, TOP CONTOUR AND SIDE CONTOUR OF SHEET OR STRIP SAMPLES IN THE TEST OF ULTRASOUND MATERIALS

Info

Publication number
FR2455728A1
FR2455728A1 FR8009895A FR8009895A FR2455728A1 FR 2455728 A1 FR2455728 A1 FR 2455728A1 FR 8009895 A FR8009895 A FR 8009895A FR 8009895 A FR8009895 A FR 8009895A FR 2455728 A1 FR2455728 A1 FR 2455728A1
Authority
FR
France
Prior art keywords
contour
sheet
width
test
automatic recognition
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.)
Withdrawn
Application number
FR8009895A
Other languages
French (fr)
Inventor
Claus Gerken
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.)
Krautkraemer GmbH and Co
Krautkraemer GmbH
Original Assignee
Krautkraemer GmbH and Co
Krautkraemer GmbH
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 Krautkraemer GmbH and Co, Krautkraemer GmbH filed Critical Krautkraemer GmbH and Co
Publication of FR2455728A1 publication Critical patent/FR2455728A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • G01N29/11—Analysing solids by measuring attenuation 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
    • G01N29/4445—Classification of 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
    • G01N2291/02—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
    • G01N2291/044—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
    • G01N2291/10—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
    • G01N2291/26—Scanned objects
    • G01N2291/269—Various geometry objects

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Image Processing (AREA)

Abstract

PROCEDE POUR LA RECONNAISSANCE AUTOMATIQUE DE LA LARGEUR, DU CONTOUR SUPERIEUR ET DES CONTOURS LATERAUX D'ECHANTILLONS EN FORME DE FEUILLE OU DE BANDE DANS L'ESSAI DE MATERIAUX AUX ULTRA-SONS. L'ENTREE OU LA SORTIE DU CONTOUR D'UN ECHANTILLON 3 DANS UN TRAJET DE COUPLAGE ENTRE DEUX TETES D'ESSAI 4 PROVOQUE UNE VARIATION DE LA PRESSION ACOUSTIQUE UTILISEE COMME SIGNAL DE RECONNAISSANCE POUR LE PASSAGE DU CONTOUR SUR LEDIT TRAJET, LES VARIATIONS DE TOUS LES SIGNAUX FOURNISSANT LE CONTOUR GLOBAL ET LA POSITION DE L'ECHANTILLON 3.METHOD FOR AUTOMATIC RECOGNITION OF THE WIDTH, UPPER CONTOUR AND SIDE CONTOURS OF SHEET OR BAND SAMPLES IN ULTRA-SOUND MATERIAL TESTING. THE ENTRY OR EXIT OF THE CONTOUR OF A SAMPLE 3 IN A COUPLING PATH BETWEEN TWO TEST HEADS 4 CAUSES A VARIATION OF THE ACOUSTIC PRESSURE USED AS A RECOGNITION SIGNAL FOR THE PASSING OF THE CONTOUR ON THIS PATH, THE VARIATIONS OF ALL SIGNALS PROVIDING THE OVERALL CONTOUR AND THE POSITION OF THE SAMPLE 3.

FR8009895A 1979-04-30 1980-04-30 PROCESS FOR THE AUTOMATIC RECOGNITION OF WIDTH, TOP CONTOUR AND SIDE CONTOUR OF SHEET OR STRIP SAMPLES IN THE TEST OF ULTRASOUND MATERIALS Withdrawn FR2455728A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2917510A DE2917510C2 (en) 1979-04-30 1979-04-30 Process for the automatic detection of the width, the head and the side contours of sheet-metal or band-shaped test pieces when testing materials with ultrasound

Publications (1)

Publication Number Publication Date
FR2455728A1 true FR2455728A1 (en) 1980-11-28

Family

ID=6069640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8009895A Withdrawn FR2455728A1 (en) 1979-04-30 1980-04-30 PROCESS FOR THE AUTOMATIC RECOGNITION OF WIDTH, TOP CONTOUR AND SIDE CONTOUR OF SHEET OR STRIP SAMPLES IN THE TEST OF ULTRASOUND MATERIALS

Country Status (6)

Country Link
JP (1) JPS55151208A (en)
BR (1) BR8002764A (en)
DE (1) DE2917510C2 (en)
FR (1) FR2455728A1 (en)
GB (1) GB2048482A (en)
IT (1) IT8048531A0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2114758B (en) * 1982-02-05 1985-07-31 Rolls Royce Ultrasonic flaw detector signal analyser
US4627291A (en) * 1983-06-06 1986-12-09 Matsushita Electric Industrial Co., Ltd. Position sensing apparatus for an object to be measured
DE3606363C2 (en) * 1986-02-27 1995-04-13 Vulkan Kocks Gmbh Device for determining the position of a vehicle relative to a container lifting device
DK163451C (en) * 1987-08-05 1992-07-20 Eskofot As METHOD FOR DETECTING ISAER THIN FILMS
US4850232A (en) * 1988-04-15 1989-07-25 Eastman Kodak Company System for measuring the dimensions of a workpiece

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380293A (en) * 1965-05-20 1968-04-30 John H. Murphy Ultrasonic inspection apparatus
CH591677A5 (en) * 1974-12-11 1977-09-30 Semperit Ag

Also Published As

Publication number Publication date
BR8002764A (en) 1980-12-16
DE2917510C2 (en) 1982-12-23
JPS55151208A (en) 1980-11-25
GB2048482A (en) 1980-12-10
IT8048531A0 (en) 1980-04-28
DE2917510A1 (en) 1980-11-27

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Legal Events

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