WO2008139930A1 - 磁気抵抗効果素子を用いた位置検知装置 - Google Patents
磁気抵抗効果素子を用いた位置検知装置 Download PDFInfo
- Publication number
- WO2008139930A1 WO2008139930A1 PCT/JP2008/058245 JP2008058245W WO2008139930A1 WO 2008139930 A1 WO2008139930 A1 WO 2008139930A1 JP 2008058245 W JP2008058245 W JP 2008058245W WO 2008139930 A1 WO2008139930 A1 WO 2008139930A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detection element
- magnet
- detector
- direction detection
- magnetoresistive effect
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
【課題】 磁石とこの磁石に対向して移動する検知器を用いて、位置検知を正確にできるようにした磁気抵抗効果素子を用いた位置検知装置を提供する。 【解決手段】 磁石2の円形の表面2aがN極に着磁され、背面2bがS極に着磁されている。検知器10は、磁石2の表面2aから離れた位置でX-Y平面内で移動する。検知器10内にはX方向検知素子20xとY方向検知素子20yが設けられている。X方向検知素子20xとY方向検知素子20yは、それぞれ磁気抵抗効果素子であり、自由磁性層に与えられているバイアス磁界の方向Bが共に磁石2の表面2aに対して垂直な向きである。よって、X方向検知素子20xとY方向検知素子20yでは、前記バイアス磁界が安定し、検知器10から、X方向の位置検知出力とY方向の位置検知出力を正確に得ることができる。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08752246A EP2151665A1 (en) | 2007-05-16 | 2008-04-30 | Position detector employing magnetoresistive effect element |
JP2009514098A JPWO2008139930A1 (ja) | 2007-05-16 | 2008-04-30 | 磁気抵抗効果素子を用いた位置検知装置 |
US12/616,382 US7800356B2 (en) | 2007-05-16 | 2009-11-11 | Position detection apparatus using magnetoresistive effect element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-130469 | 2007-05-16 | ||
JP2007130469 | 2007-05-16 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/616,382 Continuation US7800356B2 (en) | 2007-05-16 | 2009-11-11 | Position detection apparatus using magnetoresistive effect element |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008139930A1 true WO2008139930A1 (ja) | 2008-11-20 |
Family
ID=40002143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/058245 WO2008139930A1 (ja) | 2007-05-16 | 2008-04-30 | 磁気抵抗効果素子を用いた位置検知装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7800356B2 (ja) |
EP (1) | EP2151665A1 (ja) |
JP (1) | JPWO2008139930A1 (ja) |
WO (1) | WO2008139930A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008114615A1 (ja) * | 2007-03-20 | 2008-09-25 | Alps Electric Co., Ltd. | 磁気抵抗効果素子を用いた位置検知装置 |
FR2967255B1 (fr) * | 2010-11-04 | 2019-03-22 | Continental Automotive France | Dispositif de determination de la position d'un element magnetique utilisant des cellules a effet hall lineaires |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1186228A (ja) * | 1997-09-11 | 1999-03-30 | Fujitsu Ltd | スピンバルブ磁気ヘッドおよびその製造方法、磁化制御方法 |
JP2002522792A (ja) * | 1998-08-14 | 2002-07-23 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 巨大磁気抵抗材料又はスピントンネル接合を具え、層に対し垂直な感度を有する磁界センサ |
JP2005098942A (ja) * | 2003-09-26 | 2005-04-14 | Tdk Corp | 移動体検出装置 |
JP2005291826A (ja) * | 2004-03-31 | 2005-10-20 | Tdk Corp | 慣性センサ |
JP2005331400A (ja) * | 2004-05-20 | 2005-12-02 | Konica Minolta Photo Imaging Inc | 位置検出装置、手振れ補正機構、および撮像装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11352143A (ja) * | 1998-04-06 | 1999-12-24 | Matsushita Electric Ind Co Ltd | 加速度センサ |
JP3498737B2 (ja) * | 2001-01-24 | 2004-02-16 | ヤマハ株式会社 | 磁気センサの製造方法 |
JP4315759B2 (ja) | 2002-07-25 | 2009-08-19 | 旭化成エレクトロニクス株式会社 | ポインティングデバイス用磁気センサ |
JP2005069744A (ja) | 2003-08-21 | 2005-03-17 | Hamamatsu Koden Kk | 磁気検出素子 |
JP2005331401A (ja) | 2004-05-20 | 2005-12-02 | Konica Minolta Photo Imaging Inc | 位置検出装置、手振れ補正機構及び撮像装置 |
US7705586B2 (en) * | 2004-09-27 | 2010-04-27 | Nxp B.V. | Magnetic sensor for input devices |
JP4487710B2 (ja) * | 2004-09-28 | 2010-06-23 | ヤマハ株式会社 | センサ及び同センサを用いた物理量の測定方法 |
US7562207B2 (en) | 2005-01-27 | 2009-07-14 | Innovasic, Inc. | Deterministic microcontroller with context manager |
JP2006276983A (ja) | 2005-03-28 | 2006-10-12 | Yamaha Corp | ポインティングデバイス用の磁気センサ |
US7573684B2 (en) * | 2005-04-13 | 2009-08-11 | Seagate Technology Llc | Current-in-plane differential magnetic tri-layer sensor |
JP4832358B2 (ja) * | 2007-05-16 | 2011-12-07 | アルプス電気株式会社 | 位置検知装置 |
-
2008
- 2008-04-30 JP JP2009514098A patent/JPWO2008139930A1/ja not_active Withdrawn
- 2008-04-30 EP EP08752246A patent/EP2151665A1/en not_active Withdrawn
- 2008-04-30 WO PCT/JP2008/058245 patent/WO2008139930A1/ja active Application Filing
-
2009
- 2009-11-11 US US12/616,382 patent/US7800356B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1186228A (ja) * | 1997-09-11 | 1999-03-30 | Fujitsu Ltd | スピンバルブ磁気ヘッドおよびその製造方法、磁化制御方法 |
JP2002522792A (ja) * | 1998-08-14 | 2002-07-23 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 巨大磁気抵抗材料又はスピントンネル接合を具え、層に対し垂直な感度を有する磁界センサ |
JP2005098942A (ja) * | 2003-09-26 | 2005-04-14 | Tdk Corp | 移動体検出装置 |
JP2005291826A (ja) * | 2004-03-31 | 2005-10-20 | Tdk Corp | 慣性センサ |
JP2005331400A (ja) * | 2004-05-20 | 2005-12-02 | Konica Minolta Photo Imaging Inc | 位置検出装置、手振れ補正機構、および撮像装置 |
Also Published As
Publication number | Publication date |
---|---|
US20100079134A1 (en) | 2010-04-01 |
US7800356B2 (en) | 2010-09-21 |
EP2151665A1 (en) | 2010-02-10 |
JPWO2008139930A1 (ja) | 2010-08-05 |
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