JPS6082958A - ロ−ル表面疵の渦流探傷方法 - Google Patents

ロ−ル表面疵の渦流探傷方法

Info

Publication number
JPS6082958A
JPS6082958A JP19195883A JP19195883A JPS6082958A JP S6082958 A JPS6082958 A JP S6082958A JP 19195883 A JP19195883 A JP 19195883A JP 19195883 A JP19195883 A JP 19195883A JP S6082958 A JPS6082958 A JP S6082958A
Authority
JP
Japan
Prior art keywords
flaw
filter
signal
output
eddy current
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
JP19195883A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0252988B2 (enExample
Inventor
Koji Kawamura
河村　皓二
Shinichi Miyake
三宅　信市
Yoshiki Urasawa
浦沢　嘉記
Takaharu Kawamoto
川本　隆治
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
Nittetsu Densetsu Kogyo KK
Original Assignee
Nippon Steel Corp
Nittetsu Densetsu Kogyo KK
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 Nippon Steel Corp, Nittetsu Densetsu Kogyo KK filed Critical Nippon Steel Corp
Priority to JP19195883A priority Critical patent/JPS6082958A/ja
Publication of JPS6082958A publication Critical patent/JPS6082958A/ja
Publication of JPH0252988B2 publication Critical patent/JPH0252988B2/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth 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 Magnetic Means (AREA)
JP19195883A 1983-10-14 1983-10-14 ロ−ル表面疵の渦流探傷方法 Granted JPS6082958A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19195883A JPS6082958A (ja) 1983-10-14 1983-10-14 ロ−ル表面疵の渦流探傷方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19195883A JPS6082958A (ja) 1983-10-14 1983-10-14 ロ−ル表面疵の渦流探傷方法

Publications (2)

Publication Number Publication Date
JPS6082958A true JPS6082958A (ja) 1985-05-11
JPH0252988B2 JPH0252988B2 (enExample) 1990-11-15

Family

ID=16283272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19195883A Granted JPS6082958A (ja) 1983-10-14 1983-10-14 ロ−ル表面疵の渦流探傷方法

Country Status (1)

Country Link
JP (1) JPS6082958A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013104807A (ja) * 2011-11-15 2013-05-30 Jfe Steel Corp ロール表層欠陥検出装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013104807A (ja) * 2011-11-15 2013-05-30 Jfe Steel Corp ロール表層欠陥検出装置

Also Published As

Publication number Publication date
JPH0252988B2 (enExample) 1990-11-15

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