KR100801853B1 - 장척형 자기센서 - Google Patents
장척형 자기센서 Download PDFInfo
- Publication number
- KR100801853B1 KR100801853B1 KR1020067017215A KR20067017215A KR100801853B1 KR 100801853 B1 KR100801853 B1 KR 100801853B1 KR 1020067017215 A KR1020067017215 A KR 1020067017215A KR 20067017215 A KR20067017215 A KR 20067017215A KR 100801853 B1 KR100801853 B1 KR 100801853B1
- Authority
- KR
- South Korea
- Prior art keywords
- magnet
- magnets
- magnetic sensor
- magnetic
- magnetoresistive element
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Measuring Magnetic Variables (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
Claims (5)
- 피검지물의 이동방향에 대해서 직교하는 방향을 길이방향으로 하는 감자부(感磁部;magnetosensitive portion)를 표면에 형성한 복수의 자기저항 소자와, 상기 자기저항 소자의 감자부에 대해서 자계를 인가하는 복수의 자석을 갖는 장척형 자기센서로서,상기 복수의 자기저항 소자의 감자부와 상기 복수의 자석을 피검지물의 이동방향에 대해서 직교하는 직선 형상으로 각각 배열함과 아울러, 상기 자기저항 소자의 감자부를 형성한 면에 대해서 수직인 자속의 방향이, 인접하는 자석에서 서로 반대가 되도록 상기 자석을 배치한 것을 특징으로 하는 장척형 자기센서.
- 제1항에 있어서, 상기 자석은 상기 자기저항 소자마다 각각 1개씩 배치되어 있는 것을 특징으로 하는 장척형 자기센서.
- 제1항에 있어서, 상기 복수의 자석은 2개 이상의 자석을 단위로 하여 배열되며, 상기 복수의 자기저항 소자 각각은 상기 2개 이상의 자석을 모두 걸치도록 배치되는 것을 특징으로 하는 장척형 자기센서.
- 제1항에 있어서, 상기 자기저항 소자는 배치된 복수의 상기 자석의 각각의 인접위치에서, 상기 인접하는 자석에 걸쳐지도록 배치되어 있는 것을 특징으로 하 는 장척형 자기센서.
- 제1항 내지 제4항 중 어느 한 항에 있어서, 상기 자기저항 소자와 상기 자석을 수납하는 케이스를 구비하고, 상기 자기저항 소자의 배열방향을 따라, 또한 상기 자기저항 소자의 감자부에 평행한 면 내에서 지그재그 형상으로 상기 자석이 배치되도록 상기 케이스 내에 프레임부가 형성되어 있는 것을 특징으로 하는 장척형 자기센서.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004054767 | 2004-02-27 | ||
JPJP-P-2004-00054767 | 2004-02-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060114371A KR20060114371A (ko) | 2006-11-06 |
KR100801853B1 true KR100801853B1 (ko) | 2008-02-11 |
Family
ID=34908808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020067017215A KR100801853B1 (ko) | 2004-02-27 | 2005-02-23 | 장척형 자기센서 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7157905B1 (ko) |
EP (1) | EP1701176B1 (ko) |
JP (1) | JP3879777B2 (ko) |
KR (1) | KR100801853B1 (ko) |
CN (1) | CN1922504B (ko) |
WO (1) | WO2005083457A1 (ko) |
Families Citing this family (42)
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US10852367B2 (en) | 2007-05-30 | 2020-12-01 | Infineon Technologies Ag | Magnetic-field sensor with a back-bias magnet |
DE102007025000B3 (de) * | 2007-05-30 | 2008-12-11 | Infineon Technologies Ag | Magnetfeldsensor |
US10338158B2 (en) | 2007-05-30 | 2019-07-02 | Infineon Technologies Ag | Bias magnetic field sensor |
US8587297B2 (en) | 2007-12-04 | 2013-11-19 | Infineon Technologies Ag | Integrated circuit including sensor having injection molded magnetic material |
DE102007061826A1 (de) * | 2007-12-20 | 2009-06-25 | Giesecke & Devrient Gmbh | Verfahren und Vorrichtung zum Prüfen des Vorhandenseins von magnetischen Merkmalen auf einem Wertdokument |
US8610430B2 (en) | 2008-05-30 | 2013-12-17 | Infineon Technologies Ag | Bias field generation for a magneto sensor |
US20110187359A1 (en) * | 2008-05-30 | 2011-08-04 | Tobias Werth | Bias field generation for a magneto sensor |
US8174256B2 (en) * | 2008-05-30 | 2012-05-08 | Infineon Technologies Ag | Methods and systems for magnetic field sensing |
US8058870B2 (en) | 2008-05-30 | 2011-11-15 | Infineon Technologies Ag | Methods and systems for magnetic sensing |
DE102008033579B4 (de) * | 2008-07-17 | 2015-03-12 | Meas Deutschland Gmbh | Messvorrichtung zum Messen magnetischer Eigenschaften |
DE102008061507A1 (de) * | 2008-12-10 | 2010-06-17 | Giesecke & Devrient Gmbh | Magnetsensor zur Prüfung von Wertdokumenten |
JP2010243287A (ja) * | 2009-04-03 | 2010-10-28 | Tokai Rika Co Ltd | 車両のシフト位置検出装置 |
DE102010025170B4 (de) * | 2010-06-25 | 2013-02-28 | Meas Deutschland Gmbh | Vorrichtung zum Erzeugen eines Sensorsignals und Verfahren zur Bestimmung der Position eines Gebers |
JP5494591B2 (ja) * | 2010-09-28 | 2014-05-14 | 株式会社村田製作所 | 長尺型磁気センサ |
CN102435961B (zh) * | 2010-09-28 | 2014-10-08 | 株式会社村田制作所 | 长型磁传感器 |
US20120229128A1 (en) * | 2011-03-10 | 2012-09-13 | Armin Satz | Magnetic Field Sensor |
WO2012137544A1 (ja) * | 2011-04-01 | 2012-10-11 | 株式会社村田製作所 | 磁気センサ |
WO2012137543A1 (ja) * | 2011-04-01 | 2012-10-11 | 株式会社村田製作所 | 磁気センサ |
DE102011110138A1 (de) | 2011-08-15 | 2013-02-21 | Meas Deutschland Gmbh | Messvorrichtung zum Messen magnetischer Eigenschaften der Umgebung der Messvorrichtung |
WO2013150896A1 (ja) * | 2012-04-04 | 2013-10-10 | 株式会社村田製作所 | 磁気検出装置および紙幣識別装置 |
CN103512588B (zh) * | 2012-06-29 | 2016-06-08 | 北京嘉岳同乐极电子有限公司 | 长磁传感器及制造方法 |
CN103839321B (zh) * | 2012-11-23 | 2018-05-15 | 北京嘉岳同乐极电子有限公司 | 一种长尺寸检测磁传感器及其制作方法 |
DE102013000016A1 (de) | 2013-01-02 | 2014-07-03 | Meas Deutschland Gmbh | Messvorrichtung zum Messen magnetischer Eigenschaften der Umgebung der Messvorrichtung |
CN105122316B (zh) | 2013-04-05 | 2018-01-30 | 三菱电机株式会社 | 图像读取装置 |
JP6359858B2 (ja) * | 2014-04-04 | 2018-07-18 | キヤノン電子株式会社 | 磁界検出装置および磁気識別装置 |
JP6300908B2 (ja) * | 2014-05-13 | 2018-03-28 | 三菱電機株式会社 | 磁気センサ装置 |
US20170153125A1 (en) * | 2014-06-18 | 2017-06-01 | Mitsubishi Electric Corporation | Magnetic sensor device and method for producing same |
US9030778B1 (en) * | 2014-07-23 | 2015-05-12 | Singular Technology Co., Ltd. | Magnetic head housing with protection sheet bent to cover transducer and bottom-mounted control circuit board |
CN106537166B (zh) * | 2014-07-25 | 2019-12-10 | 三菱电机株式会社 | 磁性传感器装置 |
WO2016052613A1 (ja) * | 2014-10-03 | 2016-04-07 | 三菱電機株式会社 | 画像読取装置 |
DE102015002219A1 (de) * | 2015-02-24 | 2016-08-25 | Meas Deutschland Gmbh | Vormagnetisierungsmagnet und Messvorrichtung zum Messen magnetischer Eigenschaften der Umgebung der Messvorrichtung sowie Verfahren zur Vormagnetisierung magnetischer Materialien auf einem Messobjekt |
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JP6934708B2 (ja) * | 2016-07-20 | 2021-09-15 | メレキシス テクノロジーズ エス エーMelexis Technologies SA | 変位検出装置 |
WO2018116783A1 (ja) * | 2016-12-21 | 2018-06-28 | 株式会社村田製作所 | 磁気センサ |
WO2018139123A1 (ja) * | 2017-01-25 | 2018-08-02 | 三菱電機株式会社 | 筐体及び磁気センサ装置 |
WO2018199068A1 (ja) * | 2017-04-25 | 2018-11-01 | コニカミノルタ株式会社 | 磁気センサー |
KR102312972B1 (ko) * | 2017-05-10 | 2021-10-15 | 미쓰비시덴키 가부시키가이샤 | 엘리베이터의 엘리베이터 칸 위치 검출 장치 |
JP2021036199A (ja) * | 2017-10-06 | 2021-03-04 | 株式会社村田製作所 | 磁気センサ及び電流センサ |
JP7059080B2 (ja) * | 2018-04-09 | 2022-04-25 | キヤノン電子株式会社 | 磁気識別装置 |
JP1636667S (ko) * | 2018-08-21 | 2019-07-22 | ||
CN115667965A (zh) * | 2020-03-30 | 2023-01-31 | 三菱电机株式会社 | 磁传感器装置 |
JP2023097943A (ja) * | 2021-12-28 | 2023-07-10 | グローリー株式会社 | 磁気特徴検出装置及び紙葉類識別装置 |
Citations (5)
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US5180903A (en) | 1989-03-24 | 1993-01-19 | Murata Mfg. Co., Ltd. | Magnetic detecting unit having aligned sensors |
JPH05332703A (ja) * | 1992-06-04 | 1993-12-14 | Murata Mfg Co Ltd | 長尺型磁気センサ |
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US5896030A (en) | 1996-10-09 | 1999-04-20 | Honeywell Inc. | Magnetic sensor with components attached to transparent plate for laser trimming during calibration |
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2005
- 2005-02-23 JP JP2006510425A patent/JP3879777B2/ja not_active Expired - Fee Related
- 2005-02-23 WO PCT/JP2005/002854 patent/WO2005083457A1/ja active Application Filing
- 2005-02-23 CN CN2005800051888A patent/CN1922504B/zh not_active Expired - Fee Related
- 2005-02-23 KR KR1020067017215A patent/KR100801853B1/ko active IP Right Grant
- 2005-02-23 EP EP05710550.4A patent/EP1701176B1/en not_active Not-in-force
-
2006
- 2006-08-24 US US11/466,776 patent/US7157905B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6139592A (ja) | 1984-07-31 | 1986-02-25 | Japan Servo Co Ltd | 磁気エンコ−ダ |
US5180903A (en) | 1989-03-24 | 1993-01-19 | Murata Mfg. Co., Ltd. | Magnetic detecting unit having aligned sensors |
US5289122A (en) | 1991-06-17 | 1994-02-22 | Murata Mfg. Co., Ltd. | Magnetic sensor for detecting coarse and fine magnetic patterns |
JPH05332703A (ja) * | 1992-06-04 | 1993-12-14 | Murata Mfg Co Ltd | 長尺型磁気センサ |
US5896030A (en) | 1996-10-09 | 1999-04-20 | Honeywell Inc. | Magnetic sensor with components attached to transparent plate for laser trimming during calibration |
Also Published As
Publication number | Publication date |
---|---|
JPWO2005083457A1 (ja) | 2007-11-22 |
KR20060114371A (ko) | 2006-11-06 |
EP1701176A1 (en) | 2006-09-13 |
US20060279280A1 (en) | 2006-12-14 |
WO2005083457A1 (ja) | 2005-09-09 |
CN1922504B (zh) | 2010-04-07 |
EP1701176B1 (en) | 2014-06-11 |
CN1922504A (zh) | 2007-02-28 |
JP3879777B2 (ja) | 2007-02-14 |
EP1701176A4 (en) | 2007-12-19 |
US7157905B1 (en) | 2007-01-02 |
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