JPS6236540B2 - - Google Patents
Info
- Publication number
- JPS6236540B2 JPS6236540B2 JP55086900A JP8690080A JPS6236540B2 JP S6236540 B2 JPS6236540 B2 JP S6236540B2 JP 55086900 A JP55086900 A JP 55086900A JP 8690080 A JP8690080 A JP 8690080A JP S6236540 B2 JPS6236540 B2 JP S6236540B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- leg
- detected
- magnetic
- voltmeter
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 74
- 238000001514 detection method Methods 0.000 claims description 25
- 230000005284 excitation Effects 0.000 claims description 21
- 230000035945 sensitivity Effects 0.000 description 11
- 230000004907 flux Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 239000003302 ferromagnetic material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910000702 sendust Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 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
- 238000010420 art technique Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002889 diamagnetic material Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Sorting Of Articles (AREA)
- Magnetic Heads (AREA)
- Measuring Magnetic Variables (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8690080A JPS5712863A (en) | 1980-06-25 | 1980-06-25 | Differential magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8690080A JPS5712863A (en) | 1980-06-25 | 1980-06-25 | Differential magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5712863A JPS5712863A (en) | 1982-01-22 |
| JPS6236540B2 true JPS6236540B2 (enrdf_load_stackoverflow) | 1987-08-07 |
Family
ID=13899702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8690080A Granted JPS5712863A (en) | 1980-06-25 | 1980-06-25 | Differential magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5712863A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0179845U (enrdf_load_stackoverflow) * | 1987-11-18 | 1989-05-29 |
-
1980
- 1980-06-25 JP JP8690080A patent/JPS5712863A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0179845U (enrdf_load_stackoverflow) * | 1987-11-18 | 1989-05-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5712863A (en) | 1982-01-22 |
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