WO2009051069A1 - Gmrセンサ - Google Patents
Gmrセンサ Download PDFInfo
- Publication number
- WO2009051069A1 WO2009051069A1 PCT/JP2008/068435 JP2008068435W WO2009051069A1 WO 2009051069 A1 WO2009051069 A1 WO 2009051069A1 JP 2008068435 W JP2008068435 W JP 2008068435W WO 2009051069 A1 WO2009051069 A1 WO 2009051069A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gmr
- divided
- element portions
- disposed
- absolute value
- 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
- G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—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 characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2451—Incremental encoders
-
- 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)
- Measuring Magnetic Variables (AREA)
Abstract
外部からのノイズの影響や電気信号の不足に起因する不具合を防止して適切に高分解能の検出精度を実現すること。第1から第4のGMR素子を有するブリッジ回路(20)と、ブリッジ回路(20)に対向配置される磁石の移動に伴って生じる第1、第2出力端子の出力信号の差動量を検出する差動増幅器(30)と、検出された差動量を絶対値変換する絶対値変換器(40)とを備え、第1のGMR素子を分割した素子部分と第3のGMR素子を分割した素子部分と交互に一列に配置して第1GMRユニットとする一方、第2のGMR素子を分割した素子部分と第4のGMR素子を分割した素子部分と交互に一列に配置して第2GMRユニットとし、第1及び第2GMRユニットを磁石の移動方向と直交する方向に並べて配置したことを特徴とする。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009538075A JP4861483B2 (ja) | 2007-10-15 | 2008-10-10 | Gmrセンサ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-267759 | 2007-10-15 | ||
JP2007267759 | 2007-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009051069A1 true WO2009051069A1 (ja) | 2009-04-23 |
Family
ID=40567336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/068435 WO2009051069A1 (ja) | 2007-10-15 | 2008-10-10 | Gmrセンサ |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4861483B2 (ja) |
WO (1) | WO2009051069A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010281767A (ja) * | 2009-06-08 | 2010-12-16 | Alps Electric Co Ltd | センサ素子および磁気式センサ |
WO2010150725A1 (ja) * | 2009-06-24 | 2010-12-29 | アルプス電気株式会社 | 磁気検出装置 |
DE102013104783A1 (de) | 2012-05-10 | 2013-11-14 | Alps Electric Co., Ltd. | Magnet-Detektionsvorrichtung und Magnet-Encoder |
EP2722649A2 (en) | 2012-10-17 | 2014-04-23 | Alps Electric Co., Ltd. | Magnetic encoder |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103267955B (zh) * | 2013-05-28 | 2016-07-27 | 江苏多维科技有限公司 | 单芯片桥式磁场传感器 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59146720U (ja) * | 1983-03-23 | 1984-10-01 | フアナツク株式会社 | 磁気パルスエンコ−ダ |
JPS6288914U (ja) * | 1985-11-22 | 1987-06-06 | ||
JPH10221004A (ja) * | 1997-01-31 | 1998-08-21 | Mitsutoyo Corp | 変位測定器 |
JP2007121253A (ja) * | 2005-09-30 | 2007-05-17 | Hitachi Metals Ltd | 磁気エンコーダー |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59146720A (ja) * | 1983-02-05 | 1984-08-22 | Nissan Motor Co Ltd | 工業用ロボツトにおける締結具締付装置の支持装置 |
JPS6288914A (ja) * | 1985-10-16 | 1987-04-23 | Nec Corp | 高度計測装置 |
-
2008
- 2008-10-10 WO PCT/JP2008/068435 patent/WO2009051069A1/ja active Application Filing
- 2008-10-10 JP JP2009538075A patent/JP4861483B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59146720U (ja) * | 1983-03-23 | 1984-10-01 | フアナツク株式会社 | 磁気パルスエンコ−ダ |
JPS6288914U (ja) * | 1985-11-22 | 1987-06-06 | ||
JPH10221004A (ja) * | 1997-01-31 | 1998-08-21 | Mitsutoyo Corp | 変位測定器 |
JP2007121253A (ja) * | 2005-09-30 | 2007-05-17 | Hitachi Metals Ltd | 磁気エンコーダー |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010281767A (ja) * | 2009-06-08 | 2010-12-16 | Alps Electric Co Ltd | センサ素子および磁気式センサ |
WO2010150725A1 (ja) * | 2009-06-24 | 2010-12-29 | アルプス電気株式会社 | 磁気検出装置 |
JP5066628B2 (ja) * | 2009-06-24 | 2012-11-07 | アルプス電気株式会社 | 磁気検出装置 |
DE102013104783A1 (de) | 2012-05-10 | 2013-11-14 | Alps Electric Co., Ltd. | Magnet-Detektionsvorrichtung und Magnet-Encoder |
DE102013104783B4 (de) * | 2012-05-10 | 2014-07-31 | Alps Electric Co., Ltd. | Magnet-Detektionsvorrichtung und Magnet-Encoder |
EP2722649A2 (en) | 2012-10-17 | 2014-04-23 | Alps Electric Co., Ltd. | Magnetic encoder |
JP2014081298A (ja) * | 2012-10-17 | 2014-05-08 | Alps Electric Co Ltd | 磁気エンコーダ |
Also Published As
Publication number | Publication date |
---|---|
JPWO2009051069A1 (ja) | 2011-03-03 |
JP4861483B2 (ja) | 2012-01-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6770300B2 (ja) | 計測機器用の信号処理回路 | |
WO2008136054A1 (ja) | 磁気式エンコーダおよび絶対回転位置検出方法 | |
WO2009101270A3 (fr) | Capteur de position magnetique angulaire ou lineaire presentant une insensibilite aux champs exterieurs | |
WO2009024119A3 (de) | Linearsegment- oder umdrehungszähler mit einem ferromagnetischen element | |
WO2007016300A3 (en) | Magnetic crash sensor | |
WO2006044960A3 (en) | Position detection apparatus and method for linear and rotary sensing applications | |
WO2007085711A3 (fr) | Dispositif de mesure de courant continu a forte dynamique de mesure, declencheur electronique comportant un tel dispositif de mesure et dispositif de coupure ayant un tel declencheur | |
EP2607873A3 (en) | System and method for detecting magnetic noise by applying a switching function to magnetic field sensing coils | |
WO2012019958A3 (de) | Sensoranordnung und verfahren zum bestimmen einer räumlichen position eines ersten teils relativ zu einem zweiten teil | |
JP6928782B2 (ja) | 磁気式位置検出装置 | |
WO2009051069A1 (ja) | Gmrセンサ | |
NZ600562A (en) | Floor position detection device | |
EP3726237A3 (en) | Magnetic field sensor, system, and method for speed measurement | |
WO2008094809A3 (en) | Magnetic speed, direction, and/or movement extent sensor | |
WO2008042200A3 (en) | Acceleration sensor with redundant accelerometers | |
WO2008040659A3 (de) | Verfahren zum betreiben eines magnetfeldsensors und zugehöriger magnetfeldsensor | |
JP5116751B2 (ja) | 磁気検出装置 | |
WO2003100355A3 (en) | Linear variable differential transformer with digital electronics | |
WO2009041682A1 (ja) | 検知装置及び、計測装置 | |
EP2180329A3 (en) | Magnetic sensor apparatus | |
JP5216027B2 (ja) | シフト位置検出装置 | |
WO2007053519A3 (en) | Non-destructive evaluation via measurement of magnetic drag force | |
JP4531702B2 (ja) | 電流センサ | |
JP6413317B2 (ja) | 電流センサ | |
WO2009054391A1 (ja) | 磁気エンコーダ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08839599 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009538075 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 08839599 Country of ref document: EP Kind code of ref document: A1 |