WO2009001746A1 - Dispositif de détection de position pour actionneur - Google Patents

Dispositif de détection de position pour actionneur Download PDF

Info

Publication number
WO2009001746A1
WO2009001746A1 PCT/JP2008/061219 JP2008061219W WO2009001746A1 WO 2009001746 A1 WO2009001746 A1 WO 2009001746A1 JP 2008061219 W JP2008061219 W JP 2008061219W WO 2009001746 A1 WO2009001746 A1 WO 2009001746A1
Authority
WO
WIPO (PCT)
Prior art keywords
scale
actuator
yoke
magnet
detecting device
Prior art date
Application number
PCT/JP2008/061219
Other languages
English (en)
Japanese (ja)
Inventor
Hiroyuki Ono
Kei Ohno
Original Assignee
International Manufacturing And Engineering Services 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 International Manufacturing And Engineering Services Co., Ltd. filed Critical International Manufacturing And Engineering Services Co., Ltd.
Publication of WO2009001746A1 publication Critical patent/WO2009001746A1/fr

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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/28—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication
    • G01D5/30—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5569—Track change, selection or acquisition by displacement of the head across disk tracks details of specially adapted mobile parts, e.g. electromechanical control devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59677—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks with optical servo tracking
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0358—Lorentz force motors, e.g. voice coil motors moving along a curvilinear path

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

L'invention concerne un dispositif de détection de position pour un actionneur, qui est activé pour élever une bande de fréquence asservie par minimalisation de la distance entre une échelle et une unité de commande pour élever de cette façon une fréquence de résonance, de telle sorte qu'il peut améliorer une performance de suppression de perturbation. L'actionneur a un bras et un moteur à bobine acoustique à travers un pivot. Le moteur à bobine acoustique a sa bobine équipée d'une échelle faisant face à un aimant près de la bobine. L'aimant faisant face à l'échelle et une fourche supportant l'aimant sont ouverts pour avoir un trou de trajet optique conduisant de l'extérieur de la fourche à l'échelle. L'actionneur comprend un détecteur optique pour lire l'échelle par émission d'une lumière de détection vers l'échelle depuis l'extérieur de la fourche à travers le trou de trajet optique et par réception de la lumière de détection réfléchie sur l'échelle ou ayant passé à travers l'échelle.
PCT/JP2008/061219 2007-06-22 2008-06-19 Dispositif de détection de position pour actionneur WO2009001746A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-164847 2007-06-22
JP2007164847A JP2009002828A (ja) 2007-06-22 2007-06-22 アクチュエータの位置検出装置

Publications (1)

Publication Number Publication Date
WO2009001746A1 true WO2009001746A1 (fr) 2008-12-31

Family

ID=40185564

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061219 WO2009001746A1 (fr) 2007-06-22 2008-06-19 Dispositif de détection de position pour actionneur

Country Status (2)

Country Link
JP (1) JP2009002828A (fr)
WO (1) WO2009001746A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105071626A (zh) * 2015-07-31 2015-11-18 瑞声光电科技(常州)有限公司 一种线性振动电机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06309825A (ja) * 1993-04-27 1994-11-04 Internatl Business Mach Corp <Ibm> 磁気ディスク装置のサーボトラック書込み方法及び装置
JPH07326142A (ja) * 1994-05-27 1995-12-12 Internatl Business Mach Corp <Ibm> データ記録ディスク駆動装置で使用されるサーボ書込みシステム
JP2001283544A (ja) * 2000-03-31 2001-10-12 Matsushita Electric Ind Co Ltd 情報記録再生装置、媒体および情報集合体
JP2002124047A (ja) * 2000-10-11 2002-04-26 Sony Corp 磁気ディスク装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4218521B2 (ja) * 2003-12-26 2009-02-04 ソニー株式会社 サーボ信号書き込み装置およびサーボ信号書き込み方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06309825A (ja) * 1993-04-27 1994-11-04 Internatl Business Mach Corp <Ibm> 磁気ディスク装置のサーボトラック書込み方法及び装置
JPH07326142A (ja) * 1994-05-27 1995-12-12 Internatl Business Mach Corp <Ibm> データ記録ディスク駆動装置で使用されるサーボ書込みシステム
JP2001283544A (ja) * 2000-03-31 2001-10-12 Matsushita Electric Ind Co Ltd 情報記録再生装置、媒体および情報集合体
JP2002124047A (ja) * 2000-10-11 2002-04-26 Sony Corp 磁気ディスク装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105071626A (zh) * 2015-07-31 2015-11-18 瑞声光电科技(常州)有限公司 一种线性振动电机
CN105071626B (zh) * 2015-07-31 2017-12-22 瑞声光电科技(常州)有限公司 一种线性振动电机

Also Published As

Publication number Publication date
JP2009002828A (ja) 2009-01-08

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