JP6826738B2 - 非破壊検査装置 - Google Patents
非破壊検査装置 Download PDFInfo
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- JP6826738B2 JP6826738B2 JP2019538948A JP2019538948A JP6826738B2 JP 6826738 B2 JP6826738 B2 JP 6826738B2 JP 2019538948 A JP2019538948 A JP 2019538948A JP 2019538948 A JP2019538948 A JP 2019538948A JP 6826738 B2 JP6826738 B2 JP 6826738B2
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- 238000007689 inspection Methods 0.000 title claims description 31
- 239000000523 sample Substances 0.000 claims description 119
- 230000001066 destructive effect Effects 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 24
- 239000010959 steel Substances 0.000 description 24
- 238000012360 testing method Methods 0.000 description 24
- 238000005259 measurement Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 20
- 230000007797 corrosion Effects 0.000 description 17
- 238000005260 corrosion Methods 0.000 description 17
- 230000008859 change Effects 0.000 description 16
- 239000000463 material Substances 0.000 description 14
- 239000013598 vector Substances 0.000 description 14
- 230000007246 mechanism Effects 0.000 description 12
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000238366 Cephalopoda Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
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- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 229910052719 titanium Inorganic materials 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- G01N27/9006—Details, e.g. in the structure or functioning of sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ecology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
1)距離30mmで、減肉量3mm(図7のラインAで右端の矢印)
2)距離12mmで、減肉量2mm(図7のラインAで真ん中の矢印)
3)距離8mmで、減肉量1mm(図7のラインAで左端の矢印)
1)距離33mmで、減肉量3mm(図7のラインBで右端の矢印)
2)距離12mmで、減肉量2mm(図7のラインBで真ん中の矢印)
3)距離5mmで、減肉量1mm(図7のラインBで左端の矢印)
1)距離22mmで、減肉量3mm(図8のラインCで右側の矢印)
2)距離5mmで、減肉量2mm(図8のラインCで左側の矢印)
11,11’ 磁気プローブ
11a,11a’ 印加コイル
11b,11b’ 磁気センサ
11c,11c’ キャンセルコイル
12,12’ 磁気プローブ
12a,12a’ 印加コイル
12b,12b’ 磁気センサ
12c,12c’ キャンセルコイル
19 走行機構
21 電流源
22 周波数発信器
30 検波器
31 磁気センサ計測回路
32 ロックイン検波器
40 解析器
41 表示装置
T 被検体
S 地面
R 周回レール
Claims (4)
- 基端側を地中に埋設することで地面に立設した被検体に磁場を印加する印加コイルと、この印加コイルで印加された磁場に対する前記被検体からの応答を検出する磁気センサとを備えた磁気プローブと、
前記印加コイルに所定周波数の交流電流を供給する電流源と、
前記磁気センサからの出力信号を検波する検波器と、
この検波器の出力信号を用いて解析を行う解析器と
を有する非破壊検査装置において、
前記被検体の地際に向けて前記印加コイルで生成した磁場を印加する第1モードと、
この第1モードの前記印加コイルの位置とは異なる位置とした印加コイルで前記被検体に磁場を印加する第2モードと
で前記被検体からの応答を検出し、
前記第1モード及び前記第2モードで印加する磁場の周波数を、基準となる所定の周波数と、当該基準となる周波数とは異なる周波数との2つの周波数とした非破壊検査装置。 - 前記第2モードの前記印加コイルの中心軸の方向を、前記第1モードの前記印加コイルの中心軸方向と異ならせている請求項1に記載の非破壊検査装置。
- 前記第2モードの前記印加コイルの前記地面からの高さを、前記第1モードの前記印加コイルの前記地面からの高さと異ならせている請求項1に記載の非破壊検査装置。
- 前記第1モードの磁場を印加する第1の磁気プローブと、
前記第2モードの磁場を印加する第2の磁気プローブと
を有する請求項1〜3のいずれか1項に記載の非破壊検査装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017166273 | 2017-08-30 | ||
JP2017166273 | 2017-08-30 | ||
PCT/JP2018/013461 WO2019044018A1 (ja) | 2017-08-30 | 2018-03-29 | 非破壊検査装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2019044018A1 JPWO2019044018A1 (ja) | 2020-10-15 |
JP6826738B2 true JP6826738B2 (ja) | 2021-02-24 |
Family
ID=65525283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019538948A Active JP6826738B2 (ja) | 2017-08-30 | 2018-03-29 | 非破壊検査装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20210072187A1 (ja) |
JP (1) | JP6826738B2 (ja) |
WO (1) | WO2019044018A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020197479A (ja) * | 2019-06-04 | 2020-12-10 | 国立研究開発法人物質・材料研究機構 | 小型で超高感度の磁気インピーダンスセンサ、及びこれを用いた非破壊検査装置 |
JP2021001814A (ja) * | 2019-06-21 | 2021-01-07 | 国立大学法人 岡山大学 | 非破壊検査方法及び非破壊検査装置 |
CN113684871A (zh) * | 2021-09-10 | 2021-11-23 | 博华防护工程有限公司 | 基于水下支护柱腐蚀减薄智能仿生检测的水下施工方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61219857A (ja) * | 1985-03-26 | 1986-09-30 | Nichizou Tec:Kk | 塗膜のある金属表面の渦流探傷方法および装置 |
US4808924A (en) * | 1987-02-19 | 1989-02-28 | Atomic Energy Of Canada Limited | Circumferentially compensating eddy current probe with alternately polarized transmit coils and receiver coils |
JPH06242076A (ja) * | 1993-02-12 | 1994-09-02 | Toshiba Corp | 電磁気探傷装置 |
US7888932B2 (en) * | 2007-11-05 | 2011-02-15 | General Electric Company | Surface flaw detection system to facilitate nondestructive inspection of a component and methods of assembling the same |
US8378676B2 (en) * | 2009-06-05 | 2013-02-19 | Nuovo Pignone S.P.A. | System and method for detecting corrosion pitting in gas turbines |
JP6170473B2 (ja) * | 2014-06-18 | 2017-07-26 | 株式会社コベルコ科研 | 一部埋設構造物の際部分の減肉検査方法 |
DE102015203119A1 (de) * | 2015-02-20 | 2016-08-25 | Mahle International Gmbh | Verfahren zum Detektieren von Fehlstellen in einem Kolben für eine Brennkraftmaschine |
-
2018
- 2018-03-29 JP JP2019538948A patent/JP6826738B2/ja active Active
- 2018-03-29 WO PCT/JP2018/013461 patent/WO2019044018A1/ja active Application Filing
- 2018-03-29 US US16/642,564 patent/US20210072187A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20210072187A1 (en) | 2021-03-11 |
JPWO2019044018A1 (ja) | 2020-10-15 |
WO2019044018A1 (ja) | 2019-03-07 |
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