JPS6461676A - Measuring method for coercive force of magnetic substance - Google Patents
Measuring method for coercive force of magnetic substanceInfo
- Publication number
- JPS6461676A JPS6461676A JP21945687A JP21945687A JPS6461676A JP S6461676 A JPS6461676 A JP S6461676A JP 21945687 A JP21945687 A JP 21945687A JP 21945687 A JP21945687 A JP 21945687A JP S6461676 A JPS6461676 A JP S6461676A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- magnetic field
- coercive force
- current
- magnetism
- 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.)
- Pending
Links
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
PURPOSE:To measure the coercive force of a vertically magnetized film by measuring voltage variation or current variation generated between electrodes by current magnetic effect when a current is supplied into a magnetic substance from an electrode provided to the magnetic substance and a magnetic field is applied to the magnetic body. CONSTITUTION:An external magnetic field 6 exceeding the coercive force is applied in an easy magnetization direction to uniformize the magnetism in one direction. A constant current generating device 1 supplies a constant current to a sample and the voltage generated at a voltage terminal 8 at this time by voltage effect is canceled by a constant voltage generating circuit 2. An external magnetic field 6 is applied in the opposite direction from the magnetism direction and the output of a magnetic field measuring instrument 5 and the voltage variation at the voltage terminal 8 are recorded on an XY recorder. In a magnetism inversion area, the voltage generated at the voltage terminal 8 varies because of abnormal magneto-resistance effect. Consequently, the coercive force of the vertically magnetized film is easily measured in a high magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21945687A JPS6461676A (en) | 1987-09-01 | 1987-09-01 | Measuring method for coercive force of magnetic substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21945687A JPS6461676A (en) | 1987-09-01 | 1987-09-01 | Measuring method for coercive force of magnetic substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6461676A true JPS6461676A (en) | 1989-03-08 |
Family
ID=16735710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21945687A Pending JPS6461676A (en) | 1987-09-01 | 1987-09-01 | Measuring method for coercive force of magnetic substance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6461676A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012237601A (en) * | 2011-05-10 | 2012-12-06 | Tdk Corp | Magnetic field detection device and method |
| CN103069294A (en) * | 2010-08-11 | 2013-04-24 | 丰田自动车株式会社 | Coercivity performance determination device for coercivity distribution magnet |
-
1987
- 1987-09-01 JP JP21945687A patent/JPS6461676A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069294A (en) * | 2010-08-11 | 2013-04-24 | 丰田自动车株式会社 | Coercivity performance determination device for coercivity distribution magnet |
| JP2012237601A (en) * | 2011-05-10 | 2012-12-06 | Tdk Corp | Magnetic field detection device and method |
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