JPS57128842A - Method and device for discrimination of dissimilar material in eddy current flaw detection - Google Patents
Method and device for discrimination of dissimilar material in eddy current flaw detectionInfo
- Publication number
- JPS57128842A JPS57128842A JP56015233A JP1523381A JPS57128842A JP S57128842 A JPS57128842 A JP S57128842A JP 56015233 A JP56015233 A JP 56015233A JP 1523381 A JP1523381 A JP 1523381A JP S57128842 A JPS57128842 A JP S57128842A
- Authority
- JP
- Japan
- Prior art keywords
- examined
- coil
- value
- steel pipe
- reference 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.)
- Pending
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56015233A JPS57128842A (en) | 1981-02-03 | 1981-02-03 | Method and device for discrimination of dissimilar material in eddy current flaw detection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56015233A JPS57128842A (en) | 1981-02-03 | 1981-02-03 | Method and device for discrimination of dissimilar material in eddy current flaw detection |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57128842A true JPS57128842A (en) | 1982-08-10 |
Family
ID=11883141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56015233A Pending JPS57128842A (en) | 1981-02-03 | 1981-02-03 | Method and device for discrimination of dissimilar material in eddy current flaw detection |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57128842A (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0296417A2 (de) * | 1987-06-23 | 1988-12-28 | Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co. KG | Verfahren zum Untersuchen eines Objektes |
JPH0210151A (ja) * | 1988-06-28 | 1990-01-12 | Toshiba Corp | 磁気探傷装置 |
KR20030092970A (ko) * | 2002-05-31 | 2003-12-06 | 박관수 | 자기식 비접촉 이물질감지장치 및 방법 |
JP2007203225A (ja) * | 2006-02-03 | 2007-08-16 | S T Chem Co Ltd | 薬剤霧化器 |
JP2007203224A (ja) * | 2006-02-03 | 2007-08-16 | S T Chem Co Ltd | 薬剤霧化器 |
JP2008096329A (ja) * | 2006-10-13 | 2008-04-24 | Sanyo Special Steel Co Ltd | 棒鋼群の検査方法 |
JP2010091303A (ja) * | 2008-10-03 | 2010-04-22 | Yazaki Corp | 鉄筋コンクリート柱の鋼材選別装置及びその方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50129090A (ja) * | 1974-03-29 | 1975-10-11 |
-
1981
- 1981-02-03 JP JP56015233A patent/JPS57128842A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50129090A (ja) * | 1974-03-29 | 1975-10-11 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0296417A2 (de) * | 1987-06-23 | 1988-12-28 | Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co. KG | Verfahren zum Untersuchen eines Objektes |
JPH0210151A (ja) * | 1988-06-28 | 1990-01-12 | Toshiba Corp | 磁気探傷装置 |
KR20030092970A (ko) * | 2002-05-31 | 2003-12-06 | 박관수 | 자기식 비접촉 이물질감지장치 및 방법 |
JP2007203225A (ja) * | 2006-02-03 | 2007-08-16 | S T Chem Co Ltd | 薬剤霧化器 |
JP2007203224A (ja) * | 2006-02-03 | 2007-08-16 | S T Chem Co Ltd | 薬剤霧化器 |
JP2008096329A (ja) * | 2006-10-13 | 2008-04-24 | Sanyo Special Steel Co Ltd | 棒鋼群の検査方法 |
JP2010091303A (ja) * | 2008-10-03 | 2010-04-22 | Yazaki Corp | 鉄筋コンクリート柱の鋼材選別装置及びその方法 |
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