FR2637441A1 - Tete de transducteur electrodynamique pour l'essai non destructif de pieces - Google Patents

Tete de transducteur electrodynamique pour l'essai non destructif de pieces

Info

Publication number
FR2637441A1
FR2637441A1 FR8912182A FR8912182A FR2637441A1 FR 2637441 A1 FR2637441 A1 FR 2637441A1 FR 8912182 A FR8912182 A FR 8912182A FR 8912182 A FR8912182 A FR 8912182A FR 2637441 A1 FR2637441 A1 FR 2637441A1
Authority
FR
France
Prior art keywords
parts
front face
transducer head
electrodynamic transducer
destructive test
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.)
Granted
Application number
FR8912182A
Other languages
English (en)
Other versions
FR2637441B1 (fr
Inventor
Alfred Graff
Friedhelm Schlawne
Michael Waechter
Wolfgang Boettger
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of FR2637441A1 publication Critical patent/FR2637441A1/fr
Application granted granted Critical
Publication of FR2637441B1 publication Critical patent/FR2637441B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N29/24—Probes
    • G01N29/2412—Probes using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]
    • 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
    • G01N2291/0427—Flexural waves, plate waves, e.g. Lamb waves, tuning fork, cantilever

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (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)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

La présente invention concerne une tête de transducteur électrodynamique pour l'essai non destructif de pièces ayant une surface électriquement conductrice, à l'aide d'ultrasons, comportant un système d'aimant pour créer un champ magnétique statique ou à basse fréquence et au moins une bobine de transducteur agencée sur la face frontale, proche de la pièce, du système d'aimant, qui présente, du côté proche de la pièce, une couche résistant à l'usure et, entre elle et cette face frontale, une partie intermédiaire ayant une couche isolante, qui est solidaire de la face frontale et de la bobine adjacente à la couche isolante. Selon l'invention, la partie intermédiaire 10 est constituée d'au moins deux couches 11, 12, l'une 12 des couches étant électriquement conductrice, couche dont l'épaisseur de matière pour un champ à haute fréquence donné est plus grande que la profondeur de peau.
FR8912182A 1988-10-05 1989-09-18 Tete de transducteur electrodynamique pour l'essai non destructif de pieces Expired - Fee Related FR2637441B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3834248A DE3834248A1 (de) 1988-10-05 1988-10-05 Elektrodynamischer wandlerkopf

Publications (2)

Publication Number Publication Date
FR2637441A1 true FR2637441A1 (fr) 1990-04-06
FR2637441B1 FR2637441B1 (fr) 1991-05-17

Family

ID=6364649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8912182A Expired - Fee Related FR2637441B1 (fr) 1988-10-05 1989-09-18 Tete de transducteur electrodynamique pour l'essai non destructif de pieces

Country Status (4)

Country Link
US (1) US5050703A (fr)
DE (1) DE3834248A1 (fr)
FR (1) FR2637441B1 (fr)
GB (1) GB2224841B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458425A2 (fr) * 1990-05-21 1991-11-27 MANNESMANN Aktiengesellschaft Transducteur électromagnétique à aimant permanent
EP0553943A1 (fr) * 1992-01-31 1993-08-04 MANNESMANN Aktiengesellschaft Tête de contrôle pour contrôle non-destructif
EP0556557A1 (fr) * 1992-02-15 1993-08-25 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Procédé et mise en fabrication d'une protection contre l'usure de sondes ultrasonores

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124103C1 (fr) * 1991-07-18 1992-07-02 Mannesmann Ag, 4000 Duesseldorf, De
DE4130935A1 (de) * 1991-09-13 1993-03-25 Mannesmann Ag Verfahren und vorrichtung zum pruefen ferromagnetischer werkstuecke mittels ultraschallwellen
DE4343745C2 (de) * 1993-12-21 1995-10-05 Nukem Gmbh Vorrichtung mit Sonden für die zerstörungsfreie Prüfung von Werkstücken und Verfahren zur Herstellung der Vorrichtung
US5675087A (en) * 1994-02-15 1997-10-07 The Babcock & Wilcox Company Fastener characterization with an electromagnetic acoustic transducer
DE19637424A1 (de) * 1996-09-13 1998-03-26 Siemens Ag Verfahren zum Erzeugen horizontal polarisierter transversaler Ultraschallwellen zur zerstörungsfreien Werkstoffprüfung und Prüfvorrichtung
US5895871A (en) * 1997-07-25 1999-04-20 General Electric Company Finger controlled inspection apparatus
US6070467A (en) * 1997-10-17 2000-06-06 Gas Research Institute Electromagnetic acoustic transducer (EMAT) system and method for eliminating noise produced by static discharge
US6311558B1 (en) 1998-03-23 2001-11-06 The United States Of America As Represented By The Secretary Of Commerce Ultrasonic strain gage using a motorized electromagnetic acoustic transducer
US6192760B1 (en) 1999-08-19 2001-02-27 Mcdermott Technology, Inc. EMAT transmit/receive switch
JP3668406B2 (ja) * 2000-03-13 2005-07-06 株式会社ミツトヨ 電磁誘導型位置検出装置
US20040244490A1 (en) * 2003-01-22 2004-12-09 Steven Turner Method and apparaus for measuring acoustic properties of materials to determine other physical propertiesfield of the invention
US7395714B2 (en) * 2004-09-16 2008-07-08 The Boeing Company Magnetically attracted inspecting apparatus and method using a ball bearing
US7617732B2 (en) * 2005-08-26 2009-11-17 The Boeing Company Integrated curved linear ultrasonic transducer inspection apparatus, systems, and methods
US7444876B2 (en) * 2005-08-26 2008-11-04 The Boeing Company Rapid prototype integrated linear ultrasonic transducer inspection apparatus, systems, and methods
US7640810B2 (en) * 2005-07-11 2010-01-05 The Boeing Company Ultrasonic inspection apparatus, system, and method
US7464596B2 (en) * 2004-09-24 2008-12-16 The Boeing Company Integrated ultrasonic inspection probes, systems, and methods for inspection of composite assemblies
US7430913B2 (en) * 2005-08-26 2008-10-07 The Boeing Company Rapid prototype integrated matrix ultrasonic transducer array inspection apparatus, systems, and methods
US7546770B2 (en) * 2006-01-05 2009-06-16 General Electric Company Electromagnetic acoustic transducer
US8037765B2 (en) * 2007-11-01 2011-10-18 Baker Hughes Incorporated Electromagnetic acoustic transducer using magnetic shielding
DE102012201715A1 (de) * 2011-03-03 2012-09-06 Intelligendt Systems & Services Gmbh Prüfkopf zum Prüfen eines Werkstückes mit einer eine Mehrzahl von Wandlerelementen enthaltenden Ultraschallwandleranordnung und Verfahren zum Herstellen eines solchen Prüfkopfes
GB2576244B (en) * 2018-06-27 2021-02-17 Olympus Scientific Solutions Tech Inc Flexible ceramic coil circuit for high temperature non-destructive inspection
US11442042B2 (en) 2018-06-27 2022-09-13 Olympus Scientific Solutions Americas Corp. Flexible ceramic coil circuit for high temperature non-destructive inspection
CN108917805B (zh) * 2018-08-08 2019-11-26 苏州博昇科技有限公司 电磁超声波双波换能器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006433A (en) * 1977-10-20 1979-05-02 Ti Group Services Ltd Ultrasonic Testing
FR2558261A1 (fr) * 1984-01-13 1985-07-19 Nukem Gmbh Tete de transformateur electrodynamique pour le controle de pieces par ultra-sons
JPS6128861A (ja) * 1984-07-19 1986-02-08 Nippon Steel Corp 電磁超音波探傷トランスジユ−サの製造方法
EP0171118A2 (fr) * 1984-08-09 1986-02-12 Shell Internationale Researchmaatschappij B.V. Transducteur pour inspecter sans contact l'intérieur de pipelines ou de tubes, au moyen d'ultrasons

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1524955A (en) * 1974-10-09 1978-09-13 Ti Group Services Ltd Ultrasonic inspection
US4296486A (en) * 1980-01-24 1981-10-20 Rockwell International Corporation Shielded electromagnetic acoustic transducers
DE3123935C2 (de) * 1981-06-16 1985-03-28 Nukem Gmbh, 6450 Hanau Elektrodynamischer Wandler
US4578999A (en) * 1982-02-10 1986-04-01 Mannesmann A.G. Instrument for testing materials
US4602175A (en) * 1983-02-28 1986-07-22 International Business Machines Corporation Damped coil construction for VCM
DE3414071C1 (de) * 1984-04-13 1985-04-11 Nukem Gmbh, 6450 Hanau Elektrodynamischer Wandler
DE3425386C1 (de) * 1984-07-10 1985-11-14 Nukem Gmbh, 6450 Hanau Elektrodynamischer Wandler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006433A (en) * 1977-10-20 1979-05-02 Ti Group Services Ltd Ultrasonic Testing
FR2558261A1 (fr) * 1984-01-13 1985-07-19 Nukem Gmbh Tete de transformateur electrodynamique pour le controle de pieces par ultra-sons
JPS6128861A (ja) * 1984-07-19 1986-02-08 Nippon Steel Corp 電磁超音波探傷トランスジユ−サの製造方法
EP0171118A2 (fr) * 1984-08-09 1986-02-12 Shell Internationale Researchmaatschappij B.V. Transducteur pour inspecter sans contact l'intérieur de pipelines ou de tubes, au moyen d'ultrasons

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 180 (P-471)[2236], 24 juin 1986; & JP-A-61 28 861 (NIPPON STEEL CORP.) 08-02-1986 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0458425A2 (fr) * 1990-05-21 1991-11-27 MANNESMANN Aktiengesellschaft Transducteur électromagnétique à aimant permanent
EP0458425A3 (en) * 1990-05-21 1993-02-24 Mannesmann Aktiengesellschaft Electromagnetic transducer with permanent magnet
EP0553943A1 (fr) * 1992-01-31 1993-08-04 MANNESMANN Aktiengesellschaft Tête de contrôle pour contrôle non-destructif
EP0556557A1 (fr) * 1992-02-15 1993-08-25 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Procédé et mise en fabrication d'une protection contre l'usure de sondes ultrasonores

Also Published As

Publication number Publication date
DE3834248C2 (fr) 1990-08-16
GB2224841A (en) 1990-05-16
US5050703A (en) 1991-09-24
FR2637441B1 (fr) 1991-05-17
DE3834248A1 (de) 1990-04-12
GB2224841B (en) 1993-05-26
GB8922471D0 (en) 1989-11-22

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