FR2452710A1 - Procede pour corriger la sensibilite d'une sonde electromagnetique a ultra-sons - Google Patents

Procede pour corriger la sensibilite d'une sonde electromagnetique a ultra-sons

Info

Publication number
FR2452710A1
FR2452710A1 FR8005670A FR8005670A FR2452710A1 FR 2452710 A1 FR2452710 A1 FR 2452710A1 FR 8005670 A FR8005670 A FR 8005670A FR 8005670 A FR8005670 A FR 8005670A FR 2452710 A1 FR2452710 A1 FR 2452710A1
Authority
FR
France
Prior art keywords
sensitivity
correcting
ultra
probe
relationship
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
FR8005670A
Other languages
English (en)
French (fr)
Other versions
FR2452710B1 (https=
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of FR2452710A1 publication Critical patent/FR2452710A1/fr
Application granted granted Critical
Publication of FR2452710B1 publication Critical patent/FR2452710B1/fr
Granted 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
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
    • G01N27/9053—Compensating for probe to workpiece spacing
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
FR8005670A 1979-03-28 1980-03-13 Procede pour corriger la sensibilite d'une sonde electromagnetique a ultra-sons Granted FR2452710A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3755379A JPS55129749A (en) 1979-03-28 1979-03-28 Sensitivity correction method for electromagnetic ultrasonic wave probe

Publications (2)

Publication Number Publication Date
FR2452710A1 true FR2452710A1 (fr) 1980-10-24
FR2452710B1 FR2452710B1 (https=) 1983-08-26

Family

ID=12500704

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8005670A Granted FR2452710A1 (fr) 1979-03-28 1980-03-13 Procede pour corriger la sensibilite d'une sonde electromagnetique a ultra-sons

Country Status (5)

Country Link
US (1) US4292849A (https=)
JP (1) JPS55129749A (https=)
DE (1) DE3012187C2 (https=)
FR (1) FR2452710A1 (https=)
GB (1) GB2045932B (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7908205A (nl) * 1979-11-08 1981-06-01 Estel Hoogovens Bv Werkwijze en inrichting voor ultrasoon niet-destructief onderzoek.
JPS5752856A (en) * 1980-09-16 1982-03-29 Hitachi Ltd Electromagnetic ultrasonic flaw detecting device
DE3128825C2 (de) * 1981-07-21 1985-04-18 Nukem Gmbh, 6450 Hanau Vorrichtung zur zerstörungsfreien Prüfung von ferromagnetischen Materialien
DE59510950D1 (de) * 1994-04-14 2004-11-11 Fraunhofer Ges Forschung Vorrichtung und Verfahren zur Erfassung der Prüfkopfabhebung bei der zerstörungsfreien Untersuchung von metallischen Werkstoffen mit elektromagnetischen Ultraschallwandlern
US20090183350A1 (en) * 2008-01-17 2009-07-23 Wetsco, Inc. Method for Ultrasound Probe Repair

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2044331A1 (de) * 1969-09-12 1971-03-18 Owston Ch Vorrichtung fur die zerstörungsfreie Werkstoffprüfung
FR2276588A1 (fr) * 1974-06-27 1976-01-23 British Steel Corp Appareil de detection de defauts de surface dans des objets metalliques
FR2377039A1 (fr) * 1977-01-07 1978-08-04 Ti Group Services Ltd Dispositif electromagnetique de production et de detection d'ondes ultrasonores pour controler des materiaux conducteurs de l'electricite

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786672A (en) * 1972-09-20 1974-01-22 Atomic Energy Commission Two-dimensional coils for electro-magnetic generation and detection of acoustic waves

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2044331A1 (de) * 1969-09-12 1971-03-18 Owston Ch Vorrichtung fur die zerstörungsfreie Werkstoffprüfung
FR2276588A1 (fr) * 1974-06-27 1976-01-23 British Steel Corp Appareil de detection de defauts de surface dans des objets metalliques
FR2377039A1 (fr) * 1977-01-07 1978-08-04 Ti Group Services Ltd Dispositif electromagnetique de production et de detection d'ondes ultrasonores pour controler des materiaux conducteurs de l'electricite

Also Published As

Publication number Publication date
FR2452710B1 (https=) 1983-08-26
US4292849A (en) 1981-10-06
JPS55129749A (en) 1980-10-07
DE3012187C2 (de) 1984-02-23
DE3012187A1 (de) 1980-10-02
GB2045932A (en) 1980-11-05
JPS6128300B2 (https=) 1986-06-30
GB2045932B (en) 1983-05-11

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Legal Events

Date Code Title Description
ST Notification of lapse