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WO2009038161A1 - Dispositif de détection d'une origine - Google Patents

Dispositif de détection d'une origine Download PDF

Info

Publication number
WO2009038161A1
WO2009038161A1 PCT/JP2008/066959 JP2008066959W WO2009038161A1 WO 2009038161 A1 WO2009038161 A1 WO 2009038161A1 JP 2008066959 W JP2008066959 W JP 2008066959W WO 2009038161 A1 WO2009038161 A1 WO 2009038161A1
Authority
WO
WIPO (PCT)
Prior art keywords
origin
differential output
free magnetic
detection device
magneto
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2008/066959
Other languages
English (en)
Japanese (ja)
Inventor
Masahiko Sato
Yoshito Sasaki
Takafumi Noguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of WO2009038161A1 publication Critical patent/WO2009038161A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G01D5/2454—Encoders incorporating incremental and absolute signals
    • G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
    • G01D5/2457—Incremental encoders having reference marks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measuring Magnetic Variables (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

La présente invention concerne un dispositif de détection d'une origine capable de détecter une origine de façon plus précise qu'un dispositif traditionnel, grâce à l'utilisation de dispositifs magnétorésistifs comportant des couches magnétiques fixes et des couches magnétiques libres. Lorsque le centre (1c) d'un aimant (1) se situe au niveau de l'origine (P), une composante de type champ magnétique horizontal (H1) agit sur la couche magnétique libre de chaque dispositif magnétorésistif de façon à orienter ladite couche magnétique libre dans la direction du champ magnétique horizontal. Cela stabilise l'aimantation et cela rend l'hystérèse suffisamment faible pour une détection précise de l'origine. Lorsque le centre (1c) de l'aimant (1) est positionné au niveau de l'origine (P), aucune puissance différentielle n'est obtenue, alors que sinon une puissance différentielle intervient et l'origine peut être détectée en évaluant l'existence de la puissance différentielle. Cela permet de détecter précisément l'origine par un simple circuit n'exigeant pas de circuit d'ajustage d'une tension de référence ou équivalent.
PCT/JP2008/066959 2007-09-20 2008-09-19 Dispositif de détection d'une origine Ceased WO2009038161A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-243933 2007-09-20
JP2007243933A JP2010286236A (ja) 2007-09-20 2007-09-20 原点検出装置

Publications (1)

Publication Number Publication Date
WO2009038161A1 true WO2009038161A1 (fr) 2009-03-26

Family

ID=40467970

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/066959 Ceased WO2009038161A1 (fr) 2007-09-20 2008-09-19 Dispositif de détection d'une origine

Country Status (2)

Country Link
JP (1) JP2010286236A (fr)
WO (1) WO2009038161A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9034865B2 (en) 2010-02-18 2015-05-19 Medivation Technologies, Inc. Pyrido [4,3-B] indole and pyrido [3,4-B] indole derivatives and methods of use
US9040519B2 (en) 2010-02-18 2015-05-26 Medivation Technologies, Inc. Fused tetracyclic pyrido [4,3-B] indole and pyrido [3,4-B] indole derivatives and methods of use
US9193728B2 (en) 2010-02-18 2015-11-24 Medivation Technologies, Inc. Fused tetracyclic pyrido [4,3-B] indole and pyrido [3,4-B] indole derivatives and methods of use
US9434747B2 (en) 2011-02-18 2016-09-06 Medivation Technologies, Inc. Methods of treating diabetes
CN107037381A (zh) * 2015-12-29 2017-08-11 爱盛科技股份有限公司 磁场感测装置及其感测方法
WO2018193961A1 (fr) * 2017-04-18 2018-10-25 アルプス電気株式会社 Dispositif de détection d'angle de rotation
DE112014003316B4 (de) 2013-07-17 2019-07-11 Denso Corporation Rotationssensor
CN111656208A (zh) * 2018-03-22 2020-09-11 株式会社东海理化电机制作所 磁传感器
CN113960508A (zh) * 2020-07-21 2022-01-21 Tdk株式会社 磁传感器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6986002B2 (ja) * 2018-11-26 2021-12-22 Tdk株式会社 磁気センサ装置
CN109975861B (zh) * 2019-04-18 2024-05-31 国仪量子(合肥)技术有限公司 磁谱仪磁铁调试装置和光探测磁共振磁谱仪
JP7339088B2 (ja) * 2019-09-13 2023-09-05 ニデックインスツルメンツ株式会社 振れ補正機能付き光学ユニット及びその検査方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05175483A (ja) * 1991-12-24 1993-07-13 Asahi Chem Ind Co Ltd 位置センサー
JP2006153720A (ja) * 2004-11-30 2006-06-15 Tdk Corp 回転角度検出装置
JP2007220367A (ja) * 2006-02-14 2007-08-30 Alps Electric Co Ltd 磁気スイッチ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05175483A (ja) * 1991-12-24 1993-07-13 Asahi Chem Ind Co Ltd 位置センサー
JP2006153720A (ja) * 2004-11-30 2006-06-15 Tdk Corp 回転角度検出装置
JP2007220367A (ja) * 2006-02-14 2007-08-30 Alps Electric Co Ltd 磁気スイッチ

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9034865B2 (en) 2010-02-18 2015-05-19 Medivation Technologies, Inc. Pyrido [4,3-B] indole and pyrido [3,4-B] indole derivatives and methods of use
US9040519B2 (en) 2010-02-18 2015-05-26 Medivation Technologies, Inc. Fused tetracyclic pyrido [4,3-B] indole and pyrido [3,4-B] indole derivatives and methods of use
US9193728B2 (en) 2010-02-18 2015-11-24 Medivation Technologies, Inc. Fused tetracyclic pyrido [4,3-B] indole and pyrido [3,4-B] indole derivatives and methods of use
US9433626B2 (en) 2010-02-18 2016-09-06 Medivation Technologies, Inc. Pyrido[4,3-B]indole and pyrido[3,4-B]indole derivatives and methods of use
US9434747B2 (en) 2011-02-18 2016-09-06 Medivation Technologies, Inc. Methods of treating diabetes
DE112014003316B4 (de) 2013-07-17 2019-07-11 Denso Corporation Rotationssensor
CN107037381A (zh) * 2015-12-29 2017-08-11 爱盛科技股份有限公司 磁场感测装置及其感测方法
WO2018193961A1 (fr) * 2017-04-18 2018-10-25 アルプス電気株式会社 Dispositif de détection d'angle de rotation
CN111656208A (zh) * 2018-03-22 2020-09-11 株式会社东海理化电机制作所 磁传感器
CN113960508A (zh) * 2020-07-21 2022-01-21 Tdk株式会社 磁传感器
CN113960508B (zh) * 2020-07-21 2024-05-24 Tdk株式会社 磁传感器

Also Published As

Publication number Publication date
JP2010286236A (ja) 2010-12-24

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