KR880700266A - 와류를 이용한 결함 검출 방법 및 장치 - Google Patents
와류를 이용한 결함 검출 방법 및 장치Info
- Publication number
- KR880700266A KR880700266A KR1019860700282A KR860700282A KR880700266A KR 880700266 A KR880700266 A KR 880700266A KR 1019860700282 A KR1019860700282 A KR 1019860700282A KR 860700282 A KR860700282 A KR 860700282A KR 880700266 A KR880700266 A KR 880700266A
- Authority
- KR
- South Korea
- Prior art keywords
- vortex
- detection method
- defect detection
- defect
- detection
- Prior art date
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
-
- 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)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR84-14434 | 1984-09-20 | ||
FR8414434A FR2570500B1 (fr) | 1984-09-20 | 1984-09-20 | Procede et dispositif de detection de defauts typiques sur un produit en defilement, notamment pour la detection de criques sur une brame |
PCT/FR1985/000248 WO1986001895A1 (fr) | 1984-09-20 | 1985-09-17 | Procede et dispositif de detection, par courants de foucault, de defauts typiques sur un produit |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880700266A true KR880700266A (ko) | 1988-02-22 |
KR920004534B1 KR920004534B1 (ko) | 1992-06-08 |
Family
ID=9307897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019860700282A KR920004534B1 (ko) | 1984-09-20 | 1985-09-17 | 와류를 이용한 결함 검출방법 및 장치 |
Country Status (12)
Country | Link |
---|---|
US (1) | US4799011A (ko) |
EP (1) | EP0195792B1 (ko) |
JP (1) | JPH0658346B2 (ko) |
KR (1) | KR920004534B1 (ko) |
AU (1) | AU584927B2 (ko) |
BR (1) | BR8506934A (ko) |
CA (1) | CA1264354A (ko) |
DE (1) | DE3566304D1 (ko) |
ES (1) | ES8703020A1 (ko) |
FR (1) | FR2570500B1 (ko) |
WO (1) | WO1986001895A1 (ko) |
ZA (1) | ZA857076B (ko) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4823082A (en) * | 1986-02-18 | 1989-04-18 | Kabushiki Kaisha Kobe Seiko Sho | Signal processing method for an electromagnetic induction test |
DE3720686A1 (de) * | 1987-06-23 | 1989-01-05 | Foerster Inst Dr Friedrich | Verfahren zum untersuchen eines objektes |
US5055784A (en) * | 1987-12-07 | 1991-10-08 | American Research Corporation Of Virginia | Bridgeless system for directly measuring complex impedance of an eddy current probe |
FR2627862A1 (fr) * | 1988-02-26 | 1989-09-01 | Commissariat Energie Atomique | Procede de controle par courants de foucault impulsionnels et dispositif de mise en oeuvre |
DE3817574A1 (de) * | 1988-05-24 | 1989-11-30 | Fraunhofer Ges Forschung | Wirbelstromsensor |
DE3827229A1 (de) * | 1988-08-11 | 1990-02-15 | Industrieanlagen Betriebsges | Verfahren und vorrichtung zur zerstoerungsfreien pruefung von faserverstaerkten kunststoffen mittels wirbelstromsonden |
US5144231A (en) * | 1988-09-30 | 1992-09-01 | Jeffrey Tenenbaum | Eddy current detector for detecting an object with offset compensation |
US5101366A (en) * | 1989-12-18 | 1992-03-31 | General Electric Company | Method for controlling the manufacture of zirconium tubes |
US5442285A (en) * | 1994-02-28 | 1995-08-15 | Westinghouse Electric Corporation | NDE eddy current sensor for very high scan rate applications in an operating combustion turbine |
US6201391B1 (en) | 1998-10-07 | 2001-03-13 | Southwest Research Institute | Nonlinear harmonics method and system for measuring degradation in protective coatings |
US6346807B1 (en) | 1999-10-22 | 2002-02-12 | Bently Nevada Corporation | Digital eddy current proximity system: apparatus and method |
DE10045715A1 (de) | 2000-09-15 | 2002-03-28 | Busch Dieter & Co Prueftech | Verfahren und Vorrichtung zur Prüfung eines Werkstücks mittels Wirbelströmen |
KR100505929B1 (ko) * | 2003-03-31 | 2005-08-04 | 삼성광주전자 주식회사 | 압축기 및 압축기의 배관연결방법 |
US20100045276A1 (en) * | 2007-01-25 | 2010-02-25 | Board Of Trustees Of Michigan State University | Eddy current inspection system |
FI20085456L (fi) * | 2008-05-15 | 2009-11-16 | Valtion Teknillinen | Menetelmä ja laitteisto sähköisen koodin tunnistamiseksi |
US8742752B2 (en) * | 2010-10-01 | 2014-06-03 | Westinghouse Electric Company Llc | Nondestructive inspection method for a heat exchanger employing adaptive noise thresholding |
DE102011122481B4 (de) | 2011-12-20 | 2017-10-26 | Barbara Renner | Verfahren und Anordnung zur Überwachung und Lokalisierung von Materialschäden und Diskontinuitäten in Leichtbau-Verbundstrukturen |
CN103163211B (zh) * | 2013-03-14 | 2016-01-20 | 天津大学 | 一种金属导体表面和亚表面缺陷分类识别方法 |
JP6321397B2 (ja) * | 2014-02-19 | 2018-05-09 | 株式会社イシダ | 脂質含有率推定装置 |
CN109975396A (zh) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | 一种传热管涡流检测差分通道信号对称性测量方法 |
CN114112736B (zh) * | 2020-08-28 | 2023-11-14 | 宝山钢铁股份有限公司 | 确定低碳钢冷轧薄板断裂延伸率的在线测量装置及方法 |
DE102020216284A1 (de) | 2020-12-18 | 2022-06-23 | Fertigungsgerätebau Adolf Steinbach GmbH & Co. KG | Prüfvorrichtung, Prüfverfahren und Prüfprogramm zur zerstörungsfreien Bauteil- und/oder Werkstückprüfung und phasenabhängiger Kantenauswertung |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU3837372A (en) * | 1971-02-01 | 1973-08-02 | Automation Industries, Inc | Eddy current nondestructive testing system |
JPS5757657B2 (ko) * | 1974-09-30 | 1982-12-06 | Shimadzu Seisakusho Ltd | |
US4006407A (en) * | 1975-03-10 | 1977-02-01 | Magnaflux Corporation | Non-destructive testing systems having automatic balance and sample and hold operational modes |
US4074186A (en) * | 1975-09-19 | 1978-02-14 | Magnaflux Corporation | Conductivity measuring instrument having linearization means and a digital read-out |
US4134067A (en) * | 1977-09-09 | 1979-01-09 | The Boeing Company | Rotary eddy current flaw detector utilizing differentially unbalanced coils and the amplitude of a rotary induced pulse to produce the charging voltage for the sweep generator |
US4194149A (en) * | 1977-12-15 | 1980-03-18 | The Babcock & Wilcox Company | Method for generating the eddy current signature of a flaw in a tube proximate a contiguous member which obscures the flaw signal |
DE2825958C2 (de) * | 1978-06-14 | 1986-02-20 | Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen | Magnetisches oder magnetinduktives Werkstoffprüfgerät mit Nullpunktkompensationseinrichtung |
GB2028510B (en) * | 1978-08-21 | 1983-02-16 | Defence Sercretary Of State Fo | Apparatus for the detection of defects in engineering materials |
US4303885A (en) * | 1979-06-18 | 1981-12-01 | Electric Power Research Institute, Inc. | Digitally controlled multifrequency eddy current test apparatus and method |
DE2937865A1 (de) * | 1979-09-19 | 1981-04-02 | Kraftwerk Union AG, 4330 Mülheim | Verfahren zur automatischen auswertung der signale von wirbelstrommesssonden |
JPS56141553A (en) * | 1980-04-07 | 1981-11-05 | Sumitomo Metal Ind Ltd | Discriminating method for signal in eddy current flaw detection |
US4424486A (en) * | 1980-10-14 | 1984-01-03 | Zetec, Inc. | Phase rotation circuit for an eddy current tester |
JPS5793250A (en) * | 1980-11-29 | 1982-06-10 | Japan Atom Energy Res Inst | Method for detecting flaw by using eddy current |
US4414508A (en) * | 1981-03-30 | 1983-11-08 | Lockheed Corporation | Method and apparatus for automated inspection of fastener holes by eddy current |
BE892243A (fr) * | 1982-02-23 | 1982-06-16 | Dev Et D Industrialisation Des | Appareil de controle par courants de foucault a moyens d'equilibrage electroniques. |
JPS5975146A (ja) * | 1982-10-21 | 1984-04-27 | Chugoku X Sen Kk | 金属管の渦流探傷装置 |
FR2541772B1 (fr) * | 1983-02-24 | 1985-06-14 | Aerospatiale | Procede et dispositif pour l'examen non destructif de jonctions rivetees ou analogues au moyen d'une sonde a courants de foucault |
-
1984
- 1984-09-20 FR FR8414434A patent/FR2570500B1/fr not_active Expired
-
1985
- 1985-09-16 ZA ZA857076A patent/ZA857076B/xx unknown
- 1985-09-17 CA CA000490889A patent/CA1264354A/en not_active Expired - Fee Related
- 1985-09-17 BR BR8506934A patent/BR8506934A/pt not_active IP Right Cessation
- 1985-09-17 EP EP85904636A patent/EP0195792B1/fr not_active Expired
- 1985-09-17 AU AU48606/85A patent/AU584927B2/en not_active Ceased
- 1985-09-17 US US06/879,111 patent/US4799011A/en not_active Expired - Lifetime
- 1985-09-17 KR KR1019860700282A patent/KR920004534B1/ko not_active IP Right Cessation
- 1985-09-17 DE DE8585904636T patent/DE3566304D1/de not_active Expired
- 1985-09-17 JP JP60504091A patent/JPH0658346B2/ja not_active Expired - Fee Related
- 1985-09-17 WO PCT/FR1985/000248 patent/WO1986001895A1/fr active IP Right Grant
- 1985-09-19 ES ES547131A patent/ES8703020A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3566304D1 (en) | 1988-12-22 |
CA1264354A (en) | 1990-01-09 |
FR2570500B1 (fr) | 1987-03-20 |
EP0195792B1 (fr) | 1988-11-17 |
BR8506934A (pt) | 1986-12-23 |
ZA857076B (en) | 1986-04-30 |
JPH0658346B2 (ja) | 1994-08-03 |
EP0195792A1 (fr) | 1986-10-01 |
US4799011A (en) | 1989-01-17 |
AU584927B2 (en) | 1989-06-08 |
KR920004534B1 (ko) | 1992-06-08 |
WO1986001895A1 (fr) | 1986-03-27 |
FR2570500A1 (fr) | 1986-03-21 |
JPS62500261A (ja) | 1987-01-29 |
ES8703020A1 (es) | 1987-01-16 |
AU4860685A (en) | 1986-04-08 |
ES547131A0 (es) | 1987-01-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20030523 Year of fee payment: 12 |
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LAPS | Lapse due to unpaid annual fee |