TW369426B - Ferromagnetic article movement detecting sensor - Google Patents
Ferromagnetic article movement detecting sensorInfo
- Publication number
- TW369426B TW369426B TW087112810A TW87112810A TW369426B TW 369426 B TW369426 B TW 369426B TW 087112810 A TW087112810 A TW 087112810A TW 87112810 A TW87112810 A TW 87112810A TW 369426 B TW369426 B TW 369426B
- Authority
- TW
- Taiwan
- Prior art keywords
- magnetic
- induction
- component
- ferromagnetic article
- permanent magnet
- Prior art date
Links
Landscapes
- Pinball Game Machines (AREA)
- Measuring Magnetic Variables (AREA)
- Geophysics And Detection Of Objects (AREA)
- Hall/Mr Elements (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A sensor to detect ferromagnetic article movement which can set the relative location of a permanent magnet and a magnetic-induction component and can improve design and assembly flexibility using low magnetic force and high density permanent magnet. The said ferromagnetic article detecting sensor can use a magnetic-induction component, such as AMR component, for detecting the horizontal magnetic field of the magnetic-induction components. Between magnetic-induction component and permanent magnet forms a degree alpha, formed by the straight lines extending from the center of magnetic-induction surface of the said magnet component to the center of the advancing route of the ferromagnetic article and to the magnetic-induction surface of the said magnetic-induction component within the range of 42 DEG ≤ alpha ≤ 80 DEG.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9217362A JPH1167034A (en) | 1997-08-12 | 1997-08-12 | Sensor for detecting passing of ferromagnetic article |
Publications (1)
Publication Number | Publication Date |
---|---|
TW369426B true TW369426B (en) | 1999-09-11 |
Family
ID=16702994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW087112810A TW369426B (en) | 1997-08-12 | 1998-08-04 | Ferromagnetic article movement detecting sensor |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPH1167034A (en) |
TW (1) | TW369426B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4942631B2 (en) * | 2007-12-14 | 2012-05-30 | 三菱鉛筆株式会社 | Rotation detector |
-
1997
- 1997-08-12 JP JP9217362A patent/JPH1167034A/en active Pending
-
1998
- 1998-08-04 TW TW087112810A patent/TW369426B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH1167034A (en) | 1999-03-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK4A | Expiration of patent term of an invention patent |