JPS6314905B2 - - Google Patents
Info
- Publication number
- JPS6314905B2 JPS6314905B2 JP56091156A JP9115681A JPS6314905B2 JP S6314905 B2 JPS6314905 B2 JP S6314905B2 JP 56091156 A JP56091156 A JP 56091156A JP 9115681 A JP9115681 A JP 9115681A JP S6314905 B2 JPS6314905 B2 JP S6314905B2
- Authority
- JP
- Japan
- Prior art keywords
- detection
- frequency
- coil
- test
- flaw
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 87
- 230000005284 excitation Effects 0.000 claims description 29
- 230000007547 defect Effects 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 18
- 238000004458 analytical method Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 11
- 230000000875 corresponding effect Effects 0.000 description 10
- 230000035945 sensitivity Effects 0.000 description 7
- 230000035515 penetration Effects 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56091156A JPS5817353A (ja) | 1981-06-12 | 1981-06-12 | 複数コイル方式による多重周波数渦流探傷法及び多重周波数渦流探傷装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56091156A JPS5817353A (ja) | 1981-06-12 | 1981-06-12 | 複数コイル方式による多重周波数渦流探傷法及び多重周波数渦流探傷装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5817353A JPS5817353A (ja) | 1983-02-01 |
JPS6314905B2 true JPS6314905B2 (pl) | 1988-04-02 |
Family
ID=14018642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56091156A Granted JPS5817353A (ja) | 1981-06-12 | 1981-06-12 | 複数コイル方式による多重周波数渦流探傷法及び多重周波数渦流探傷装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5817353A (pl) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000131287A (ja) * | 1998-10-23 | 2000-05-12 | Japan Science & Technology Corp | 磁気計測による探傷方法及び装置 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59108955A (ja) * | 1982-12-13 | 1984-06-23 | Nippon Steel Corp | マルチプロ−ブコイルマルチ周波数渦流探傷装置 |
JPS59166857A (ja) * | 1983-03-11 | 1984-09-20 | Nippon Steel Corp | マルチプロ−ブ、マルチ周波数渦流探傷装置の信号処理回路 |
JPS59176664A (ja) * | 1983-03-28 | 1984-10-06 | Mitsubishi Heavy Ind Ltd | 多重周波数渦電流探傷分析装置 |
JPS6273158A (ja) * | 1985-09-27 | 1987-04-03 | Daizaburo Iwasaki | 渦流探傷試験における信号処理方法およびその装置 |
SE456863B (sv) * | 1986-07-15 | 1988-11-07 | Toernbloms Kvalitetskontroll | Maet- och/eller kontrollanordning utnyttjande virvelstroemsteknik med undertryckning av godartade ytdeformationer |
SE451886B (sv) * | 1986-10-10 | 1987-11-02 | Sten Linder | Sett och anordning for beroringsfri metning av storheter hos eller i anslutning till elektriskt ledande material |
JPH0348152A (ja) * | 1989-04-17 | 1991-03-01 | Idemitsu Eng Co Ltd | 渦流探傷検査法および渦流探傷検査用基準試料の製作方法 |
US5068608A (en) * | 1989-10-30 | 1991-11-26 | Westinghouse Electric Corp. | Multiple coil eddy current probe system and method for determining the length of a discontinuity |
US5049817A (en) * | 1990-06-08 | 1991-09-17 | Atomic Energy Of Canada Limited | Eddy current probe, incorporating multi-bracelets of different pancake coil diameters, for detecting internal defects in ferromagnetic tubes |
US11710489B2 (en) | 2004-06-14 | 2023-07-25 | Wanda Papadimitriou | Autonomous material evaluation system and method |
US11680867B2 (en) | 2004-06-14 | 2023-06-20 | Wanda Papadimitriou | Stress engineering assessment of risers and riser strings |
FR2904693B1 (fr) * | 2006-08-03 | 2008-10-24 | Commissariat Energie Atomique | Dispositif de controle par courants de foucault a fonctions emission/reception separees d'une piece electriquement conductrice |
CN107422028B (zh) * | 2017-04-20 | 2021-01-05 | 北京昊鹏智能技术有限公司 | 分布式结构健康监测系统及方法 |
-
1981
- 1981-06-12 JP JP56091156A patent/JPS5817353A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000131287A (ja) * | 1998-10-23 | 2000-05-12 | Japan Science & Technology Corp | 磁気計測による探傷方法及び装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS5817353A (ja) | 1983-02-01 |
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