JPS5622912A - Rotary sensor - Google Patents
Rotary sensorInfo
- Publication number
- JPS5622912A JPS5622912A JP9807179A JP9807179A JPS5622912A JP S5622912 A JPS5622912 A JP S5622912A JP 9807179 A JP9807179 A JP 9807179A JP 9807179 A JP9807179 A JP 9807179A JP S5622912 A JPS5622912 A JP S5622912A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- detection parts
- lead
- pitch
- resolution
- 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
Abstract
PURPOSE: To improve the resolution of a rotary sensor by forming detection parts of fixed pitches by bending a magnetic resistance element.
CONSTITUTION: Substrate 4, holding the strength of a sensor, has magnetic resistance element 2 vapor-deposited. Element 2 is the part that detects information recorded on a recording medium and composed of lead-wire fitting parts R1 and R2 to which lead wires are soldered, detection parts R3, R5, R7 and R9 that detect magnetic flux, and gang parts R4, R6 and R8. Lead-wire fitting parts R1 and R2 should be wide in width. Further, detection parts R3, R5, R7 and R9 should be several tens μ in width because of the relation between sensitivity and current density. Arranging detection parts R3, R5, R7 and R9 at pitch one (n)-th recording wavelength λ (n is ≥2 integer) resistance variations of them put out of phase at pitch λ/n, so that resolution (n) times the recording density can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9807179A JPS5622912A (en) | 1979-08-02 | 1979-08-02 | Rotary sensor |
US06/173,842 US4418372A (en) | 1979-08-02 | 1980-07-30 | Magnetic rotary encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9807179A JPS5622912A (en) | 1979-08-02 | 1979-08-02 | Rotary sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5622912A true JPS5622912A (en) | 1981-03-04 |
Family
ID=14210104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9807179A Pending JPS5622912A (en) | 1979-08-02 | 1979-08-02 | Rotary sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5622912A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57158513A (en) * | 1981-03-25 | 1982-09-30 | Sharp Corp | Magnetic scale |
JPS5979858A (en) * | 1982-10-30 | 1984-05-09 | Nippon Denso Co Ltd | Apparatus for detecting rotation |
-
1979
- 1979-08-02 JP JP9807179A patent/JPS5622912A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57158513A (en) * | 1981-03-25 | 1982-09-30 | Sharp Corp | Magnetic scale |
JPS5979858A (en) * | 1982-10-30 | 1984-05-09 | Nippon Denso Co Ltd | Apparatus for detecting rotation |
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