JPS637619B2 - - Google Patents

Info

Publication number
JPS637619B2
JPS637619B2 JP55159512A JP15951280A JPS637619B2 JP S637619 B2 JPS637619 B2 JP S637619B2 JP 55159512 A JP55159512 A JP 55159512A JP 15951280 A JP15951280 A JP 15951280A JP S637619 B2 JPS637619 B2 JP S637619B2
Authority
JP
Japan
Prior art keywords
electromagnetic
ultrasonic
signal level
magnetic
received signal
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
JP55159512A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5784350A (en
Inventor
Takashi Kadowaki
Minoru Fujimoto
Akihiro Tanaka
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
Original Assignee
Hitachi 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 filed Critical Hitachi Ltd
Priority to JP55159512A priority Critical patent/JPS5784350A/ja
Publication of JPS5784350A publication Critical patent/JPS5784350A/ja
Publication of JPS637619B2 publication Critical patent/JPS637619B2/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
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness

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)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
JP55159512A 1980-11-14 1980-11-14 Electromagnetic ultrasonic probe Granted JPS5784350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55159512A JPS5784350A (en) 1980-11-14 1980-11-14 Electromagnetic ultrasonic probe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159512A JPS5784350A (en) 1980-11-14 1980-11-14 Electromagnetic ultrasonic probe

Publications (2)

Publication Number Publication Date
JPS5784350A JPS5784350A (en) 1982-05-26
JPS637619B2 true JPS637619B2 (en]) 1988-02-17

Family

ID=15695387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159512A Granted JPS5784350A (en) 1980-11-14 1980-11-14 Electromagnetic ultrasonic probe

Country Status (1)

Country Link
JP (1) JPS5784350A (en])

Also Published As

Publication number Publication date
JPS5784350A (en) 1982-05-26

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