JP4767585B2 - 磁性量検知型磁気センサ装置 - Google Patents
磁性量検知型磁気センサ装置 Download PDFInfo
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- JP4767585B2 JP4767585B2 JP2005138350A JP2005138350A JP4767585B2 JP 4767585 B2 JP4767585 B2 JP 4767585B2 JP 2005138350 A JP2005138350 A JP 2005138350A JP 2005138350 A JP2005138350 A JP 2005138350A JP 4767585 B2 JP4767585 B2 JP 4767585B2
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- magnetic sensor
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- 238000001514 detection method Methods 0.000 title claims description 34
- 239000000696 magnetic material Substances 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 18
- 230000035945 sensitivity Effects 0.000 description 10
- 230000005389 magnetism Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
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- Measuring Magnetic Variables (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
3、3A、3B、3C 磁気センサ 4 基盤
5 永久磁石 6 窓板
7 ホルダ板 7A ホルダブロック
8 充填材 9 リード線
10 導体リード A、B MR素子
C GMR素子 p 紙幣
q 感磁軸 r 磁気インク像
Claims (5)
- 磁性材料で描画した磁気像を有する媒体との間で相対移動される磁気センサと、
該センサにその感磁軸に中心磁力線を与えかつ中心磁力線の方向が媒体の移動方向と一致する、該媒体の移動方向に関して該センサの下流側に位置する永久磁石とからなり、
該センサの感磁軸は、媒体と直角乃至媒体の移動方向に関して上流側に前傾した姿勢に置かれ、該センサに接触乃至狭間隙を存して通過する媒体の磁気像を該磁気像の磁性量に応じた検知出力で検知することを特徴とする磁性量検知型磁気センサ装置。 - 前記感磁軸の傾き角の上限が、媒体の移動方向に対して垂直となる方向を基準として60°であることを特徴とする請求項1記載の磁気センサ装置。
- 前記磁気センサがMR素子と抵抗とを、もしくはGMR素子と抵抗とを接続した磁気強度センサであることを特徴とする請求項1または2記載の磁気センサ装置。
- 前記磁気センサと永久磁石とを非磁性材料のケースに収容したことを特徴とする請求項1〜3のいずれかの項に記載の磁気センサ装置。
- 前記媒体は、磁気インクで描画した磁気像を有する紙幣であることを特徴とする請求項1〜4のいずれかの項に記載の磁気センサ装置。
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JP2005138350A JP4767585B2 (ja) | 2005-05-11 | 2005-05-11 | 磁性量検知型磁気センサ装置 |
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JP2006317218A JP2006317218A (ja) | 2006-11-24 |
JP4767585B2 true JP4767585B2 (ja) | 2011-09-07 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5056195B2 (ja) * | 2007-06-21 | 2012-10-24 | パナソニック株式会社 | 紙幣識別装置 |
KR101282561B1 (ko) | 2011-12-28 | 2013-07-04 | 노틸러스효성 주식회사 | 정전기 차단 구조의 자기 센서를 포함하는 지폐의 이매검지장치 |
CA2869294A1 (en) | 2012-04-09 | 2013-10-17 | Mitsubishi Electric Corporation | Magnetic sensor |
CN103226865B (zh) * | 2013-04-16 | 2016-05-25 | 无锡乐尔科技有限公司 | 一种基于磁电阻技术检测磁性图形表面磁场的磁头 |
CN106560005B (zh) | 2014-06-11 | 2019-09-06 | 三菱电机株式会社 | 磁性传感器装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5857810B2 (ja) * | 1975-07-17 | 1983-12-22 | 松下電器産業株式会社 | ジキヘツド |
JP3283931B2 (ja) * | 1992-12-11 | 2002-05-20 | グローリー工業株式会社 | 磁気質検出装置 |
JP2005030872A (ja) * | 2003-07-10 | 2005-02-03 | Toshiba Corp | 磁性体量検出装置 |
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