JPH0113533B2 - - Google Patents
Info
- Publication number
- JPH0113533B2 JPH0113533B2 JP57049789A JP4978982A JPH0113533B2 JP H0113533 B2 JPH0113533 B2 JP H0113533B2 JP 57049789 A JP57049789 A JP 57049789A JP 4978982 A JP4978982 A JP 4978982A JP H0113533 B2 JPH0113533 B2 JP H0113533B2
- Authority
- JP
- Japan
- Prior art keywords
- transducer
- coil
- inspected
- magnetic core
- shield plate
- 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
- 230000005284 excitation Effects 0.000 claims description 19
- 238000012360 testing method Methods 0.000 claims description 5
- 230000007547 defect Effects 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 claims 1
- 230000000644 propagated effect Effects 0.000 claims 1
- 230000001902 propagating effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 29
- 238000010586 diagram Methods 0.000 description 10
- 239000010410 layer Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 230000004907 flux Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000000737 periodic effect Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009659 non-destructive testing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2412—Probes using the magnetostrictive properties of the material to be examined, e.g. electromagnetic acoustic transducers [EMAT]
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material 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 Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57049789A JPS58166256A (ja) | 1982-03-27 | 1982-03-27 | 電磁超音波受信用トランスジユ−サ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57049789A JPS58166256A (ja) | 1982-03-27 | 1982-03-27 | 電磁超音波受信用トランスジユ−サ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58166256A JPS58166256A (ja) | 1983-10-01 |
| JPH0113533B2 true JPH0113533B2 (es) | 1989-03-07 |
Family
ID=12840918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57049789A Granted JPS58166256A (ja) | 1982-03-27 | 1982-03-27 | 電磁超音波受信用トランスジユ−サ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58166256A (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223470C2 (de) * | 1992-07-16 | 1995-10-05 | Fraunhofer Ges Forschung | Ultraschall-Prüfkopf |
-
1982
- 1982-03-27 JP JP57049789A patent/JPS58166256A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58166256A (ja) | 1983-10-01 |
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