JPS5469927A - Measuring instrument for characteristics of magnetic bubble element - Google Patents
Measuring instrument for characteristics of magnetic bubble elementInfo
- Publication number
- JPS5469927A JPS5469927A JP13702077A JP13702077A JPS5469927A JP S5469927 A JPS5469927 A JP S5469927A JP 13702077 A JP13702077 A JP 13702077A JP 13702077 A JP13702077 A JP 13702077A JP S5469927 A JPS5469927 A JP S5469927A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- auxiliary
- bias
- coils
- horizontal component
- 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.)
- Granted
Links
Abstract
PURPOSE: To make it possible to measure continuously the operation margin of of a bubble element, by providing an auxiliary bias coil and simple rotating driver unit to a bubble memory measuring instrument.
CONSTITUTION: The vertical component of auxiliary magnetic field H'B generated by auxiliary bias coils 9 and 10 should be applied to bias magnetic field HB by bias coils 2 and 3, and the horizontal component to rotating magnetic field HD by driving coils 6 and 7; the magnetic field of the horizontal component is equivalent to the vector product of the rotating magnetic field and the horizontal component of the field by the auxiliary bias coils. Since the auxiliary bias coils rotate mechanically and synchronously with the rotating magnetic field, the margin measurement of the bubble element can be exercised continuously through the signal rotation of the auxiliary bias coils, by adequately setting the bias magnetic field and auxiliary magnetic field.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13702077A JPS5927996B2 (en) | 1977-11-15 | 1977-11-15 | Characteristic measuring device for magnetic bubble elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13702077A JPS5927996B2 (en) | 1977-11-15 | 1977-11-15 | Characteristic measuring device for magnetic bubble elements |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5469927A true JPS5469927A (en) | 1979-06-05 |
JPS5927996B2 JPS5927996B2 (en) | 1984-07-10 |
Family
ID=15188947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13702077A Expired JPS5927996B2 (en) | 1977-11-15 | 1977-11-15 | Characteristic measuring device for magnetic bubble elements |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5927996B2 (en) |
-
1977
- 1977-11-15 JP JP13702077A patent/JPS5927996B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5927996B2 (en) | 1984-07-10 |
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