JPS6255098B2 - - Google Patents
Info
- Publication number
- JPS6255098B2 JPS6255098B2 JP55141754A JP14175480A JPS6255098B2 JP S6255098 B2 JPS6255098 B2 JP S6255098B2 JP 55141754 A JP55141754 A JP 55141754A JP 14175480 A JP14175480 A JP 14175480A JP S6255098 B2 JPS6255098 B2 JP S6255098B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- circular
- detection
- voltage
- coil
- 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 72
- 230000007547 defect Effects 0.000 claims description 45
- 239000000523 sample Substances 0.000 claims description 21
- 238000011000 absolute method Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 description 27
- 238000012360 testing method Methods 0.000 description 16
- 230000010355 oscillation Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 239000000284 extract Substances 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling 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 |
|---|---|---|---|
| JP55141754A JPS5766353A (en) | 1980-10-09 | 1980-10-09 | Eddy current flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55141754A JPS5766353A (en) | 1980-10-09 | 1980-10-09 | Eddy current flaw detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5766353A JPS5766353A (en) | 1982-04-22 |
| JPS6255098B2 true JPS6255098B2 (enrdf_load_stackoverflow) | 1987-11-18 |
Family
ID=15299409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55141754A Granted JPS5766353A (en) | 1980-10-09 | 1980-10-09 | Eddy current flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5766353A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0776765B2 (ja) * | 1986-08-29 | 1995-08-16 | 株式会社日立製作所 | 渦流試験装置 |
-
1980
- 1980-10-09 JP JP55141754A patent/JPS5766353A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5766353A (en) | 1982-04-22 |
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