JPS5469927A - Measuring instrument for characteristics of magnetic bubble element - Google Patents

Measuring instrument for characteristics of magnetic bubble element

Info

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
Application number
JP13702077A
Other languages
Japanese (ja)
Other versions
JPS5927996B2 (en
Inventor
Seiichi Iwasa
Shunsuke Matsuyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP13702077A priority Critical patent/JPS5927996B2/en
Publication of JPS5469927A publication Critical patent/JPS5469927A/en
Publication of JPS5927996B2 publication Critical patent/JPS5927996B2/en
Expired legal-status Critical Current

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
JP13702077A 1977-11-15 1977-11-15 Characteristic measuring device for magnetic bubble elements Expired JPS5927996B2 (en)

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)

Also Published As

Publication number Publication date
JPS5927996B2 (en) 1984-07-10

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