JPS6416924A - Detector and magnetic head for magnetic information - Google Patents
Detector and magnetic head for magnetic informationInfo
- Publication number
- JPS6416924A JPS6416924A JP17342487A JP17342487A JPS6416924A JP S6416924 A JPS6416924 A JP S6416924A JP 17342487 A JP17342487 A JP 17342487A JP 17342487 A JP17342487 A JP 17342487A JP S6416924 A JPS6416924 A JP S6416924A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- drum
- tracks
- track
- parts
- 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
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE:To improve detection accuracy by arranging magnetic detecting elements over plural tracks in the width direction of the tracks. CONSTITUTION:A rotor drum 3 is fitted on a rotary shaft 2 and a detection part 4 detects the angle of rotation of the drum 3. A ferromagnetic body which is a magnetic recording medium is stuck on the outer peripheral surface of the drum 3 by a coating method, etc., and plural tracks 5-8 are formed on the ferromagnetic body while shifting in the axial direction of the rotary shaft 2. The detection part 4 is provided with magnetic detecting elements 9-12 corresponding individually to the respective tracks 5-8. For example, the element 10 arranged to the overall width W of the track 6 is provided with elements P1-P4 and is divided into three parts 10a-10c corresponding to the respective track parts 6a-6c; when the drum 3 is rotated as shown by an arrow 13, a relatively flat detection output where drops in resistance value at bottom parts of magnetic poles are suppressed is obtained from the whole element 10, and a recording part where a magnetic pole is formed is securely detected on the track 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173424A JPH0621796B2 (en) | 1987-07-10 | 1987-07-10 | Rotary encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62173424A JPH0621796B2 (en) | 1987-07-10 | 1987-07-10 | Rotary encoder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6416924A true JPS6416924A (en) | 1989-01-20 |
JPH0621796B2 JPH0621796B2 (en) | 1994-03-23 |
Family
ID=15960195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62173424A Expired - Lifetime JPH0621796B2 (en) | 1987-07-10 | 1987-07-10 | Rotary encoder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0621796B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02220274A (en) * | 1989-02-22 | 1990-09-03 | Y E Data Inc | Data storage device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58139014A (en) * | 1982-02-15 | 1983-08-18 | Hitachi Ltd | Rotary encoder |
JPS59108193A (en) * | 1982-12-13 | 1984-06-22 | 株式会社日立製作所 | Magnetic rotary sensor |
-
1987
- 1987-07-10 JP JP62173424A patent/JPH0621796B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58139014A (en) * | 1982-02-15 | 1983-08-18 | Hitachi Ltd | Rotary encoder |
JPS59108193A (en) * | 1982-12-13 | 1984-06-22 | 株式会社日立製作所 | Magnetic rotary sensor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02220274A (en) * | 1989-02-22 | 1990-09-03 | Y E Data Inc | Data storage device |
Also Published As
Publication number | Publication date |
---|---|
JPH0621796B2 (en) | 1994-03-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080323 Year of fee payment: 14 |