JPS5462873A - Magnetic sensor - Google Patents
Magnetic sensorInfo
- Publication number
- JPS5462873A JPS5462873A JP12859177A JP12859177A JPS5462873A JP S5462873 A JPS5462873 A JP S5462873A JP 12859177 A JP12859177 A JP 12859177A JP 12859177 A JP12859177 A JP 12859177A JP S5462873 A JPS5462873 A JP S5462873A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic field
- magnetic sensor
- short bar
- sensor
- 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 magnify the allowable range of detection distance between a magnetic sensor and a magnet (disc) and facilitate handling of the magnetic sensor by magnetically shorting a pair of yokes of the magnetic sensor by means of a magnetic short bar using a ferromagnetic material.
CONSTITUTION: A magnetic short bar 11 which magnetically shorts the yokes 3, 3a of a magnetic sensor 1 is so provided that the magnetic permeabilities of the yokes 3, 3a are larger than the magnetic permeability of the magnetic short bar in a low magnetic field and smaller in a strong magnetic field. In the case of detecting rotating angles by disposing this magnetic sensor 1 in proximity to a disc including a magnet, it does not receive the effect of the magnetic short bar in a weak magnetic field but is shorted in a strong magnetic field, thus the ratio of the magnetic flux flowing the magnetic line decreases. Hence, the ratio of the change in the magnetic flux in the magnetic line is smaller than the change in the magnetic flux in a gap G, thus even if the magnetic field in the gap G changes largely, the magnetic field thereof may be sufficiently detected and therefore the distance l between the magnetic sensor 1 and the magnet may be made smaller and the allowable range is magnified.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12859177A JPS5462873A (en) | 1977-10-28 | 1977-10-28 | Magnetic sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12859177A JPS5462873A (en) | 1977-10-28 | 1977-10-28 | Magnetic sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5462873A true JPS5462873A (en) | 1979-05-21 |
JPS5756700B2 JPS5756700B2 (en) | 1982-12-01 |
Family
ID=14988534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12859177A Granted JPS5462873A (en) | 1977-10-28 | 1977-10-28 | Magnetic sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5462873A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013130424A (en) * | 2011-12-20 | 2013-07-04 | Nidec Sankyo Corp | Magnetic sensor device |
-
1977
- 1977-10-28 JP JP12859177A patent/JPS5462873A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013130424A (en) * | 2011-12-20 | 2013-07-04 | Nidec Sankyo Corp | Magnetic sensor device |
Also Published As
Publication number | Publication date |
---|---|
JPS5756700B2 (en) | 1982-12-01 |
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