JPS5744851A - Eddy current type flaw detecting method and probe thereof - Google Patents

Eddy current type flaw detecting method and probe thereof

Info

Publication number
JPS5744851A
JPS5744851A JP55120141A JP12014180A JPS5744851A JP S5744851 A JPS5744851 A JP S5744851A JP 55120141 A JP55120141 A JP 55120141A JP 12014180 A JP12014180 A JP 12014180A JP S5744851 A JPS5744851 A JP S5744851A
Authority
JP
Japan
Prior art keywords
coils
probe
scanning
eddy current
detecting method
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
JP55120141A
Other languages
Japanese (ja)
Other versions
JPS6131423B2 (en
Inventor
Tatsuo Hiroshima
Takahide Sakamoto
Akio Takahashi
Akio Kokubu
Kazumi Ueda
Katsumi Taguchi
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.)
HARA DENSHI SOKKI KK
HARA DENSHI SOTSUKI KK
Nippon Steel Corp
Eddio Corp
Original Assignee
HARA DENSHI SOKKI KK
HARA DENSHI SOTSUKI KK
Sumitomo Metal Industries Ltd
Eddio 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 HARA DENSHI SOKKI KK, HARA DENSHI SOTSUKI KK, Sumitomo Metal Industries Ltd, Eddio Corp filed Critical HARA DENSHI SOKKI KK
Priority to JP55120141A priority Critical patent/JPS5744851A/en
Publication of JPS5744851A publication Critical patent/JPS5744851A/en
Publication of JPS6131423B2 publication Critical patent/JPS6131423B2/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
    • G01N27/904—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 with two or more sensors

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)

Abstract

PURPOSE:To make possible the quantitative evaluation of a flaw by providing linear linear sacnning with a simple construction, by a method wherein a plurality of rectangular coils are arranged at different angles with one another in the direction of scanning to process detected signals in a multiplex manner. CONSTITUTION:Each of a plurality of coils 11-17 constituting a probe P consists of three rectangular coils and these coils are arranged at different angles with one another in the direction of scanning at the pitch of about 15 deg. in sector shape. In addition, the coils 11-17 are connected in series and the detected signals from the coils 11-17 which have been processed in a multiplex manner works to cancel the directivity of each of the coils 11.... Therefore, simple operation providing only linear scanning with a simple construction making unnecessary the rotation of the coil and the like allows the quantitative evaluation of a flaw.
JP55120141A 1980-08-29 1980-08-29 Eddy current type flaw detecting method and probe thereof Granted JPS5744851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55120141A JPS5744851A (en) 1980-08-29 1980-08-29 Eddy current type flaw detecting method and probe thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55120141A JPS5744851A (en) 1980-08-29 1980-08-29 Eddy current type flaw detecting method and probe thereof

Publications (2)

Publication Number Publication Date
JPS5744851A true JPS5744851A (en) 1982-03-13
JPS6131423B2 JPS6131423B2 (en) 1986-07-19

Family

ID=14778974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55120141A Granted JPS5744851A (en) 1980-08-29 1980-08-29 Eddy current type flaw detecting method and probe thereof

Country Status (1)

Country Link
JP (1) JPS5744851A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61290220A (en) * 1985-06-18 1986-12-20 大元　聖司 Screw pin
JPH05322852A (en) * 1992-05-19 1993-12-07 Syst Hightech:Kk Magnetic sensor group arrangement structure in thin steel band magnetic flaw detection method
JP2013185952A (en) * 2012-03-08 2013-09-19 Jfe Steel Corp Magnetic flaw detection probe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61290220A (en) * 1985-06-18 1986-12-20 大元　聖司 Screw pin
JPH05322852A (en) * 1992-05-19 1993-12-07 Syst Hightech:Kk Magnetic sensor group arrangement structure in thin steel band magnetic flaw detection method
JP2013185952A (en) * 2012-03-08 2013-09-19 Jfe Steel Corp Magnetic flaw detection probe

Also Published As

Publication number Publication date
JPS6131423B2 (en) 1986-07-19

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