AU1320395A - Method and device for magnetic testing of metal products - Google Patents
Method and device for magnetic testing of metal productsInfo
- Publication number
- AU1320395A AU1320395A AU13203/95A AU1320395A AU1320395A AU 1320395 A AU1320395 A AU 1320395A AU 13203/95 A AU13203/95 A AU 13203/95A AU 1320395 A AU1320395 A AU 1320395A AU 1320395 A AU1320395 A AU 1320395A
- Authority
- AU
- Australia
- Prior art keywords
- magnetic field
- product
- products
- metal products
- detector
- 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.)
- Abandoned
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
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)
- Soft Magnetic Materials (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Measuring Magnetic Variables (AREA)
- General Induction Heating (AREA)
Abstract
Method and device for magnetic testing of metal products (1) comprising detection means (2) responsive to variations of the magnetic field intensity, for detecting vibrations in the magnetic field caused on the exterior of the product to be inspected by defects (12, 13) in said product, in which is generated such a magnetic field. According to the invention, the magnetizing means (5, 14) generate a magnetic field oriented at right angles to the surface (11) of the product (1) to be tested and the detection means (2), located near the mangetizing means, include at least one detector, such as a magneto-resistor, its electrical resistance being a function of the intensity of the magnetic field in which said detector is placed. The device of the invention is useful, in particular, for detecting surface or under-skin defects on products with geometrical surface irregularities, such as continuously cast iron and steel products.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9315783A FR2714470B1 (en) | 1993-12-24 | 1993-12-24 | Magnetic control method and device. |
FR9315783 | 1993-12-24 | ||
PCT/FR1994/001512 WO1995018371A1 (en) | 1993-12-24 | 1994-12-22 | Method and device for magnetic testing of metal products |
Publications (1)
Publication Number | Publication Date |
---|---|
AU1320395A true AU1320395A (en) | 1995-07-17 |
Family
ID=9454508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU13203/95A Abandoned AU1320395A (en) | 1993-12-24 | 1994-12-22 | Method and device for magnetic testing of metal products |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0736173B1 (en) |
JP (1) | JPH09507294A (en) |
AT (1) | ATE165162T1 (en) |
AU (1) | AU1320395A (en) |
DE (1) | DE69409671D1 (en) |
FR (1) | FR2714470B1 (en) |
WO (1) | WO1995018371A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5273350B2 (en) * | 2008-03-17 | 2013-08-28 | 健一 田島 | Eddy current flaw detector and its measuring method |
US9678175B2 (en) | 2010-07-26 | 2017-06-13 | Radiation Monitoring Devices, Inc. | Eddy current detection |
EP2574911B1 (en) | 2011-09-29 | 2014-03-26 | ABB Technology AG | Method and arrangement for crack detection in a metallic material |
DE102013209805A1 (en) * | 2013-05-27 | 2014-11-27 | iCONTROLS k.s. | Inductive sensor |
KR101657745B1 (en) * | 2013-12-11 | 2016-09-19 | 주식회사 포스코 | Apparatus and method of detecting defect of steel plate |
KR102023739B1 (en) | 2019-04-17 | 2019-09-20 | 주식회사 엘지화학 | Inner crack detection device for secondary battery using eddy current |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3443211A (en) * | 1965-04-01 | 1969-05-06 | American Mach & Foundry | Magnetometer inspection apparatus for ferromagnetic objects |
GB1261346A (en) * | 1968-03-13 | 1972-01-26 | Atomic Energy Authority Uk | Improvements in or relating to the detection of magnetic discontinuities |
US3670239A (en) * | 1970-03-19 | 1972-06-13 | Sumitomo Metal Ind | Method and apparatus for magnetic flaw detection by using magneto-sensitive diodes |
US3739261A (en) * | 1971-06-28 | 1973-06-12 | Atomic Energy Commission | Method for measuring the amount of cold working in a stainless steel sample |
GB1366287A (en) * | 1972-08-08 | 1974-09-11 | Rster F F | Method and device for magnetographic inspection |
US3899734A (en) * | 1973-05-14 | 1975-08-12 | Vetco Offshore Ind Inc | Magnetic flux leakage inspection method and apparatus including magnetic diodes |
-
1993
- 1993-12-24 FR FR9315783A patent/FR2714470B1/en not_active Expired - Fee Related
-
1994
- 1994-12-22 EP EP95904587A patent/EP0736173B1/en not_active Expired - Lifetime
- 1994-12-22 AU AU13203/95A patent/AU1320395A/en not_active Abandoned
- 1994-12-22 DE DE69409671T patent/DE69409671D1/en not_active Expired - Lifetime
- 1994-12-22 WO PCT/FR1994/001512 patent/WO1995018371A1/en active IP Right Grant
- 1994-12-22 AT AT95904587T patent/ATE165162T1/en not_active IP Right Cessation
- 1994-12-22 JP JP7517808A patent/JPH09507294A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0736173B1 (en) | 1998-04-15 |
FR2714470B1 (en) | 1996-03-01 |
JPH09507294A (en) | 1997-07-22 |
FR2714470A1 (en) | 1995-06-30 |
DE69409671D1 (en) | 1998-05-20 |
WO1995018371A1 (en) | 1995-07-06 |
EP0736173A1 (en) | 1996-10-09 |
ATE165162T1 (en) | 1998-05-15 |
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