JPH0145577B2 - - Google Patents

Info

Publication number
JPH0145577B2
JPH0145577B2 JP56088189A JP8818981A JPH0145577B2 JP H0145577 B2 JPH0145577 B2 JP H0145577B2 JP 56088189 A JP56088189 A JP 56088189A JP 8818981 A JP8818981 A JP 8818981A JP H0145577 B2 JPH0145577 B2 JP H0145577B2
Authority
JP
Japan
Prior art keywords
test material
flaw detection
coil
waves
transmitting
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
Application number
JP56088189A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57203950A (en
Inventor
Hisao Yamaguchi
Kazuo Fujisawa
Takashi Kadowaki
Susumu Ito
Soji Sasaki
Kazuya Sato
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.)
Hitachi Ltd
Nippon Steel Corp
Original Assignee
Hitachi Ltd
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 Hitachi Ltd, Sumitomo Metal Industries Ltd filed Critical Hitachi Ltd
Priority to JP56088189A priority Critical patent/JPS57203950A/ja
Priority to DE8282302944T priority patent/DE3275315D1/de
Priority to EP82302944A priority patent/EP0067065B1/en
Priority to US06/386,445 priority patent/US4450725A/en
Publication of JPS57203950A publication Critical patent/JPS57203950A/ja
Publication of JPH0145577B2 publication Critical patent/JPH0145577B2/ja
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
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0421—Longitudinal waves

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)
JP56088189A 1981-06-10 1981-06-10 Electromagnetic ultrasonic flaw detector Granted JPS57203950A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56088189A JPS57203950A (en) 1981-06-10 1981-06-10 Electromagnetic ultrasonic flaw detector
DE8282302944T DE3275315D1 (en) 1981-06-10 1982-06-08 Electromagnetic-acoustic measuring apparatus
EP82302944A EP0067065B1 (en) 1981-06-10 1982-06-08 Electromagnetic-acoustic measuring apparatus
US06/386,445 US4450725A (en) 1981-06-10 1982-06-09 Electromagnetic-acoustic measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56088189A JPS57203950A (en) 1981-06-10 1981-06-10 Electromagnetic ultrasonic flaw detector

Publications (2)

Publication Number Publication Date
JPS57203950A JPS57203950A (en) 1982-12-14
JPH0145577B2 true JPH0145577B2 (en]) 1989-10-04

Family

ID=13935948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56088189A Granted JPS57203950A (en) 1981-06-10 1981-06-10 Electromagnetic ultrasonic flaw detector

Country Status (1)

Country Link
JP (1) JPS57203950A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61228345A (ja) * 1985-04-02 1986-10-11 Hitachi Constr Mach Co Ltd 超音波による固体の表面開口欠陥の深さ測定方法
JPH03248006A (ja) * 1990-02-27 1991-11-06 Nkk Corp 電磁超音波肉厚計の信号処理方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53105282A (en) * 1977-02-25 1978-09-13 Nippon Steel Corp Electromagnetic type ultrasonic transmitter-receiver
JPS5655851A (en) * 1979-10-12 1981-05-16 Sumitomo Metal Ind Ltd Flaw-detecting method by surface wave

Also Published As

Publication number Publication date
JPS57203950A (en) 1982-12-14

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