JPS5631637A - Instrument unit of electromagnetic ultrasonic wave - Google Patents

Instrument unit of electromagnetic ultrasonic wave

Info

Publication number
JPS5631637A
JPS5631637A JP10719079A JP10719079A JPS5631637A JP S5631637 A JPS5631637 A JP S5631637A JP 10719079 A JP10719079 A JP 10719079A JP 10719079 A JP10719079 A JP 10719079A JP S5631637 A JPS5631637 A JP S5631637A
Authority
JP
Japan
Prior art keywords
coils
failure
reception
waves
differential amplifier
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
JP10719079A
Other languages
English (en)
Other versions
JPS6323505B2 (ja
Inventor
Kazuya Sato
Kazuo Miyagawa
Yukito Sasaki
Koji Kawamura
Shuichi Sato
Soji Sasaki
Jun Kubota
Susumu Ito
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
Nippon Steel Corp
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, Nippon Steel Corp filed Critical Hitachi Ltd
Priority to JP10719079A priority Critical patent/JPS5631637A/ja
Priority to US06/180,043 priority patent/US4348903A/en
Priority to EP80105010A priority patent/EP0024707B1/en
Priority to DE8080105010T priority patent/DE3069797D1/de
Publication of JPS5631637A publication Critical patent/JPS5631637A/ja
Publication of JPS6323505B2 publication Critical patent/JPS6323505B2/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
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices
    • 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
    • G01N2291/042—Wave modes
    • G01N2291/0421—Longitudinal waves
JP10719079A 1979-08-24 1979-08-24 Instrument unit of electromagnetic ultrasonic wave Granted JPS5631637A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10719079A JPS5631637A (en) 1979-08-24 1979-08-24 Instrument unit of electromagnetic ultrasonic wave
US06/180,043 US4348903A (en) 1979-08-24 1980-08-21 Electromagnetic ultrasonic apparatus
EP80105010A EP0024707B1 (en) 1979-08-24 1980-08-22 Electromagnetic ultrasonic apparatus
DE8080105010T DE3069797D1 (en) 1979-08-24 1980-08-22 Electromagnetic ultrasonic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10719079A JPS5631637A (en) 1979-08-24 1979-08-24 Instrument unit of electromagnetic ultrasonic wave

Publications (2)

Publication Number Publication Date
JPS5631637A true JPS5631637A (en) 1981-03-31
JPS6323505B2 JPS6323505B2 (ja) 1988-05-17

Family

ID=14452744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10719079A Granted JPS5631637A (en) 1979-08-24 1979-08-24 Instrument unit of electromagnetic ultrasonic wave

Country Status (4)

Country Link
US (1) US4348903A (ja)
EP (1) EP0024707B1 (ja)
JP (1) JPS5631637A (ja)
DE (1) DE3069797D1 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144456A (en) * 1981-03-02 1982-09-07 Hitachi Ltd Non-destructive inspecting device
JPS57208451A (en) * 1981-06-18 1982-12-21 Hitachi Ltd Electromagnetic type ultrasonic flaw inspector
JPS5841347A (ja) * 1981-09-04 1983-03-10 Hitachi Ltd 溶接部検出装置
JPS61245056A (ja) * 1985-04-22 1986-10-31 Mitsubishi Electric Corp 板波トランスデユ−サ
EP0067065B1 (en) * 1981-06-10 1987-01-28 Hitachi, Ltd. Electromagnetic-acoustic measuring apparatus
US5493511A (en) * 1992-12-08 1996-02-20 Administrator, National Aeronautics And Space Administration High speed thin plate fatigue crack monitor

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449411A (en) * 1982-04-22 1984-05-22 Magnetic Analysis Corporation Magnetic and ultrasonic objects testing apparatus
US4449408A (en) * 1982-04-22 1984-05-22 Magnetic Analysis Corporation EMAT Test apparatus having retractable probe
US4523473A (en) * 1983-08-08 1985-06-18 The Charles Stark Draper Laboratory, Inc. Magneto-elastic material defect detector
DE3401072C2 (de) * 1984-01-13 1986-04-10 Nukem Gmbh, 6450 Hanau Elektrodynamischer Wandlerkopf
DE3413787A1 (de) * 1984-04-12 1985-10-17 Nukem Gmbh, 6450 Hanau Verfahren und vorrichtung zur pruefung von elektrisch leitenden gegenstaenden mittels ultraschall
DE3530525C2 (de) * 1985-08-27 1994-05-11 Foerster Inst Dr Friedrich Vorrichtung zur zerstörungsfreien Werkstoffprüfung
DE3614069A1 (de) * 1986-04-24 1987-11-12 Mannesmann Ag Vorrichtung zur zerstoerungsfreien pruefung durch ultraschall
US5154081A (en) * 1989-07-21 1992-10-13 Iowa State University Research Foundation, Inc. Means and method for ultrasonic measurement of material properties
CA2151116C (en) * 1994-06-09 1999-09-14 Paul J. Latimer Zig-zag electromagnetic acoustic transducer scan
US5714688A (en) * 1994-09-30 1998-02-03 The Babcock & Wilcox Company EMAT measurement of ductile cast iron nodularity
JPH08334431A (ja) * 1995-06-09 1996-12-17 Mitsubishi Electric Corp 非破壊検査装置
US10808756B2 (en) 2007-04-13 2020-10-20 Waukesha Bearings Corporation Compliant bearing
FI124803B (fi) * 2011-10-21 2015-01-30 Idsens Oy Menetelmä ja laitteisto kiinteiden esineiden vahvistamiseksi aidoksi
GB201419219D0 (en) * 2014-10-29 2014-12-10 Imp Innovations Ltd Electromagnetic accoustic transducer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143388A (en) * 1977-05-20 1978-12-13 Nippon Steel Corp Ultrasonic wave reception of electromagnetic type

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469182A (en) * 1967-06-23 1969-09-23 Gkn Group Services Ltd Flaw detecting apparatus with mechanical scanning of detection means
US3583213A (en) * 1968-07-26 1971-06-08 James R Houck Nondestructive testing of conductive objects using ultrasonic waves
US3786672A (en) * 1972-09-20 1974-01-22 Atomic Energy Commission Two-dimensional coils for electro-magnetic generation and detection of acoustic waves
GB1425201A (en) * 1973-06-19 1976-02-18 British Steel Corp Ultrasonic testing of articles
FR2245251A5 (en) * 1973-09-25 1975-04-18 Inst Introskopii Non-destructive ultrasonic tester of workpieces - has electrically conductive surface for quality control and thickness measurement
JPS5286388A (en) * 1976-01-13 1977-07-18 Nippon Steel Corp Method of detecting flaw by supersonic waves
GB1565063A (en) * 1976-06-17 1980-04-16 Ti Ultrasound
DE2643601C3 (de) * 1976-09-28 1979-03-08 Hoesch Werke Ag, 4600 Dortmund Verfahren zur zerstörungsfreien Werkstoffprüfung mit Ultraschall unter Verwendung eines elektrodynamischen Schallwandlers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53143388A (en) * 1977-05-20 1978-12-13 Nippon Steel Corp Ultrasonic wave reception of electromagnetic type

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144456A (en) * 1981-03-02 1982-09-07 Hitachi Ltd Non-destructive inspecting device
JPH0149899B2 (ja) * 1981-03-02 1989-10-26 Hitachi Ltd
EP0067065B1 (en) * 1981-06-10 1987-01-28 Hitachi, Ltd. Electromagnetic-acoustic measuring apparatus
JPS57208451A (en) * 1981-06-18 1982-12-21 Hitachi Ltd Electromagnetic type ultrasonic flaw inspector
JPS6355668B2 (ja) * 1981-06-18 1988-11-04 Hitachi Seisakusho Kk
JPS5841347A (ja) * 1981-09-04 1983-03-10 Hitachi Ltd 溶接部検出装置
JPH0148503B2 (ja) * 1981-09-04 1989-10-19 Hitachi Ltd
JPS61245056A (ja) * 1985-04-22 1986-10-31 Mitsubishi Electric Corp 板波トランスデユ−サ
US5493511A (en) * 1992-12-08 1996-02-20 Administrator, National Aeronautics And Space Administration High speed thin plate fatigue crack monitor

Also Published As

Publication number Publication date
EP0024707B1 (en) 1984-12-12
US4348903A (en) 1982-09-14
EP0024707A3 (en) 1981-04-01
EP0024707A2 (en) 1981-03-11
DE3069797D1 (en) 1985-01-24
JPS6323505B2 (ja) 1988-05-17

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