GB2169080A - Measurement system for the detection of defects in electrically conductive material - Google Patents
Measurement system for the detection of defects in electrically conductive material Download PDFInfo
- Publication number
- GB2169080A GB2169080A GB08522491A GB8522491A GB2169080A GB 2169080 A GB2169080 A GB 2169080A GB 08522491 A GB08522491 A GB 08522491A GB 8522491 A GB8522491 A GB 8522491A GB 2169080 A GB2169080 A GB 2169080A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage value
- coil
- defects
- defect
- detection
- 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.)
- Withdrawn
Links
- 230000007547 defect Effects 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 title claims abstract description 9
- 239000004020 conductor Substances 0.000 title claims description 5
- 239000000463 material Substances 0.000 claims description 21
- 239000000523 sample Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 2
- 238000004590 computer program Methods 0.000 claims 1
- 230000001066 destructive effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007619 statistical method Methods 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
- G01N27/9046—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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT48901/84A IT1177991B (it) | 1984-09-25 | 1984-09-25 | Sonda industriale di tipo differenziale ad una sola bobina per il controllo non distruttivo di prodotti siderurgici |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8522491D0 GB8522491D0 (en) | 1985-10-16 |
| GB2169080A true GB2169080A (en) | 1986-07-02 |
Family
ID=11268965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08522491A Withdrawn GB2169080A (en) | 1984-09-25 | 1985-09-11 | Measurement system for the detection of defects in electrically conductive material |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE903300A (fr) |
| DE (1) | DE3533311A1 (fr) |
| FR (1) | FR2570828A1 (fr) |
| GB (1) | GB2169080A (fr) |
| IT (1) | IT1177991B (fr) |
| NL (1) | NL8502529A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4003330A1 (de) * | 1990-02-05 | 1991-08-08 | Foerster Inst Dr Friedrich | Wirbelstrompruefgeraet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1475517A (en) * | 1974-06-27 | 1977-06-01 | British Steel Corp | Detection of surface defects in elongate metallic members |
| GB2010492A (en) * | 1977-12-15 | 1979-06-27 | Babcock & Wilcox Co | Method for the detection of flaws in a tube proximate a contiguous member |
| US4383218A (en) * | 1978-12-29 | 1983-05-10 | The Boeing Company | Eddy current flow detection including compensation for system variables such as lift-off |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0042881B1 (fr) * | 1980-06-27 | 1983-10-05 | Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co. KG | Procédé et dispositif pour examiner une pièce d'essai métallique |
| FR2512959A1 (fr) * | 1981-09-14 | 1983-03-18 | Commissariat Energie Atomique | Procede et dispositifs de controle d'une surface au moyen d'un capteur a courants de foucault |
-
1984
- 1984-09-25 IT IT48901/84A patent/IT1177991B/it active
-
1985
- 1985-09-11 GB GB08522491A patent/GB2169080A/en not_active Withdrawn
- 1985-09-16 NL NL8502529A patent/NL8502529A/nl not_active Application Discontinuation
- 1985-09-18 DE DE19853533311 patent/DE3533311A1/de not_active Ceased
- 1985-09-23 FR FR8514067A patent/FR2570828A1/fr active Pending
- 1985-09-24 BE BE6/48142A patent/BE903300A/fr not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1475517A (en) * | 1974-06-27 | 1977-06-01 | British Steel Corp | Detection of surface defects in elongate metallic members |
| GB2010492A (en) * | 1977-12-15 | 1979-06-27 | Babcock & Wilcox Co | Method for the detection of flaws in a tube proximate a contiguous member |
| US4383218A (en) * | 1978-12-29 | 1983-05-10 | The Boeing Company | Eddy current flow detection including compensation for system variables such as lift-off |
Also Published As
| Publication number | Publication date |
|---|---|
| BE903300A (fr) | 1986-01-16 |
| FR2570828A1 (fr) | 1986-03-28 |
| GB8522491D0 (en) | 1985-10-16 |
| DE3533311A1 (de) | 1986-03-27 |
| NL8502529A (nl) | 1986-04-16 |
| IT8448901A1 (it) | 1986-03-25 |
| IT8448901A0 (it) | 1984-09-25 |
| IT1177991B (it) | 1987-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |