JP5161505B2 - 磁気センサ - Google Patents
磁気センサ Download PDFInfo
- Publication number
- JP5161505B2 JP5161505B2 JP2007190539A JP2007190539A JP5161505B2 JP 5161505 B2 JP5161505 B2 JP 5161505B2 JP 2007190539 A JP2007190539 A JP 2007190539A JP 2007190539 A JP2007190539 A JP 2007190539A JP 5161505 B2 JP5161505 B2 JP 5161505B2
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- Japan
- Prior art keywords
- magnetic
- magnetic field
- magnetic element
- generating means
- central body
- Prior art date
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- 230000005291 magnetic effect Effects 0.000 title claims description 174
- 239000010410 layer Substances 0.000 description 20
- 239000002131 composite material Substances 0.000 description 12
- 230000005415 magnetization Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 7
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
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- Transmission And Conversion Of Sensor Element Output (AREA)
- Measuring Magnetic Variables (AREA)
Description
11 中心体
12 対象物
13 磁性素子
16 永久磁石(第1の磁界発生手段)
18 永久磁石(第2の磁界発生手段)
Claims (4)
- 固定された中心体の周りを回転する対象物の回転移動を検出するための磁気センサであって、
前記中心体に設けられ大バルクハウゼンジャンプを起こしうる磁性素子と、該磁性素子の近傍の前記中心体に設けられ該磁性素子に対して所定の極性の磁界を作用させる第1の磁界発生手段と、前記対象物に設けられ前記磁性素子の少なくとも一端に該対象物と共に近接離間可能なように配置され該一端に近接している時は前記磁性素子に対して前記所定の極性とは反対極性の磁界を作用させる第2の磁界発生手段とを備えており、前記磁性素子がセット状態とリセット状態とに交互に切り換えられるように構成されていることを特徴とする磁気センサ。 - 前記磁性素子は、前記第1の磁界発生手段の周りに間隔をおいて複数個設けられている請求項1に記載の磁気センサ。
- 前記第2の磁界発生手段は、前記第1の磁界発生手段の周りに間隔をおいて複数個設けられている請求項1又は2に記載の磁気センサ。
- 前記第2の磁界発生手段は、前記磁性素子の両端に近接可能なように該磁性素子を挟む位置に配置されている請求項1〜3のいずれか1の請求項に記載の磁気センサ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007190539A JP5161505B2 (ja) | 2007-07-23 | 2007-07-23 | 磁気センサ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007190539A JP5161505B2 (ja) | 2007-07-23 | 2007-07-23 | 磁気センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009025226A JP2009025226A (ja) | 2009-02-05 |
JP5161505B2 true JP5161505B2 (ja) | 2013-03-13 |
Family
ID=40397156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007190539A Active JP5161505B2 (ja) | 2007-07-23 | 2007-07-23 | 磁気センサ |
Country Status (1)
Country | Link |
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JP (1) | JP5161505B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7358181B2 (ja) * | 2019-10-09 | 2023-10-10 | ヒロセ電機株式会社 | 商品販売機 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2547533Y2 (ja) * | 1991-03-15 | 1997-09-10 | 株式会社トーキン | パルス発生装置 |
JPH05264686A (ja) * | 1992-01-20 | 1993-10-12 | Sansei Denki Kk | 磁界変化の検出・通信方法および同装置 |
JP3679907B2 (ja) * | 1997-09-18 | 2005-08-03 | Hst株式会社 | パルス信号発生装置 |
JP4415158B2 (ja) * | 2000-01-07 | 2010-02-17 | ヒロセ電機株式会社 | 磁気センサ |
JP2007115794A (ja) * | 2005-10-19 | 2007-05-10 | Yaskawa Electric Corp | フレキシブルプリント基板並びにフレキシブルプリント基板を用いた磁気式エンコーダ及びサーボモータ |
-
2007
- 2007-07-23 JP JP2007190539A patent/JP5161505B2/ja active Active
Also Published As
Publication number | Publication date |
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JP2009025226A (ja) | 2009-02-05 |
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