JPS54143178A - Magnetic characteristic meter - Google Patents
Magnetic characteristic meterInfo
- Publication number
- JPS54143178A JPS54143178A JP5156478A JP5156478A JPS54143178A JP S54143178 A JPS54143178 A JP S54143178A JP 5156478 A JP5156478 A JP 5156478A JP 5156478 A JP5156478 A JP 5156478A JP S54143178 A JPS54143178 A JP S54143178A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic flux
- sample
- signals
- amplifier
- 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
- Measuring Magnetic Variables (AREA)
- Hard Magnetic Materials (AREA)
Abstract
PURPOSE: To make it possible to detect the variation in the magnetic flux of a materials, which simplifying the measurement, by detecting the magnetic flux variation with the use of a search coil, which is attached to the head end of a detector of a magnetic characteristic meter, so that the variation is compared with the fundamental signals stored in a memory.
CONSTITUTION: First of all, a magnetic field is generated under the condition having no magnetic sample 8, and the magnetic flux of a search coil 10 is stored in an amplifier 14, Then, the magnetic field is generated under the condition having the sample 8, and the magnetic flux at that time is detected by an amplifier 13. The magnetic flux of the amplifier 13 contains that which is induced by the sample 8. If, therefore, a difference is deduced between the magnetic fluxes of the amplifiers 14 and 13, the magnetic flux induced in the sample 8 can be obtained. Then, adjustment is made by a comparator circuit 15 such that the magnetic fields are in phase with the signals of the amplifiers 14 and 13 thereby to obtain the magnetic flux to be induced by the sample 8. A detector 16 detects the signals of the magnetic field, whereas X-Y recorder 17 displays both the signals of a comparator circuit 15 and the detector 16 at the same time. Thus, it is possible to obtain the characteristic relationship of the sample 8 between the magnetic field in the longitudinal direction and the magnetic flux.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5156478A JPS54143178A (en) | 1978-04-27 | 1978-04-27 | Magnetic characteristic meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5156478A JPS54143178A (en) | 1978-04-27 | 1978-04-27 | Magnetic characteristic meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54143178A true JPS54143178A (en) | 1979-11-08 |
Family
ID=12890457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5156478A Pending JPS54143178A (en) | 1978-04-27 | 1978-04-27 | Magnetic characteristic meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54143178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157395A (en) * | 1983-12-21 | 1985-08-17 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Device for measuring video magnetic tape unit |
-
1978
- 1978-04-27 JP JP5156478A patent/JPS54143178A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157395A (en) * | 1983-12-21 | 1985-08-17 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Device for measuring video magnetic tape unit |
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