JPS6259776B2 - - Google Patents
Info
- Publication number
- JPS6259776B2 JPS6259776B2 JP55141755A JP14175580A JPS6259776B2 JP S6259776 B2 JPS6259776 B2 JP S6259776B2 JP 55141755 A JP55141755 A JP 55141755A JP 14175580 A JP14175580 A JP 14175580A JP S6259776 B2 JPS6259776 B2 JP S6259776B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- coil
- circular
- detection
- voltage
- 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 76
- 230000007547 defect Effects 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 27
- 239000000523 sample Substances 0.000 claims description 23
- 238000011000 absolute method Methods 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 18
- 230000010355 oscillation Effects 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 10
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000001939 inductive effect Effects 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 |
|---|---|---|---|
| JP55141755A JPS5766354A (en) | 1980-10-09 | 1980-10-09 | Eddy current flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55141755A JPS5766354A (en) | 1980-10-09 | 1980-10-09 | Eddy current flaw detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5766354A JPS5766354A (en) | 1982-04-22 |
| JPS6259776B2 true JPS6259776B2 (enrdf_load_stackoverflow) | 1987-12-12 |
Family
ID=15299432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55141755A Granted JPS5766354A (en) | 1980-10-09 | 1980-10-09 | Eddy current flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5766354A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4817575B2 (ja) * | 1999-12-23 | 2011-11-16 | ケーエルエー−テンカー コーポレイション | 渦電流測定を利用して、メタライゼーション処理を実状態で監視する方法 |
-
1980
- 1980-10-09 JP JP55141755A patent/JPS5766354A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5766354A (en) | 1982-04-22 |
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