WO2008117596A1 - 磁気エンコーダー - Google Patents

磁気エンコーダー Download PDF

Info

Publication number
WO2008117596A1
WO2008117596A1 PCT/JP2008/052926 JP2008052926W WO2008117596A1 WO 2008117596 A1 WO2008117596 A1 WO 2008117596A1 JP 2008052926 W JP2008052926 W JP 2008052926W WO 2008117596 A1 WO2008117596 A1 WO 2008117596A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotation
magnetic
elasticity
magnetic medium
relative movement
Prior art date
Application number
PCT/JP2008/052926
Other languages
English (en)
French (fr)
Inventor
Yasunori Abe
Yuji Nihei
Shinji Furuichi
Original Assignee
Hitachi Metals, 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
Priority claimed from JP2007186843A external-priority patent/JP4702636B2/ja
Priority claimed from JP2007241046A external-priority patent/JP4702637B2/ja
Application filed by Hitachi Metals, Ltd. filed Critical Hitachi Metals, Ltd.
Priority to CN200880010425.3A priority Critical patent/CN101646923B/zh
Priority to US12/450,205 priority patent/US8159212B2/en
Publication of WO2008117596A1 publication Critical patent/WO2008117596A1/ja

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

　磁気センサー素子と磁気媒体間のギャップ変動が小さく、組み立てが容易で、部品点数が少なく、耐摺動性が高く、衝撃等の外力に対しても安定した磁気エンコーダーを開示する。磁気センサーの保持機構の構造を、往復摺動相対移動方向を回転軸とする回転に対する弾性と、往復相対移動方向に垂直で且つ磁気媒体に平行な方向を回転軸とする回転に対する弾性を有し、センサー素子に垂直な方向に対し弾性を有する渦巻き状板ばね構造とし、５０ｍＮ以上８００ｍＮ以下の範囲で磁気媒体に押し付ける荷重を与える。
PCT/JP2008/052926 2007-03-28 2008-02-21 磁気エンコーダー WO2008117596A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200880010425.3A CN101646923B (zh) 2007-03-28 2008-02-21 磁编码器
US12/450,205 US8159212B2 (en) 2007-03-28 2008-02-21 Magnetic encoder

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2007-084704 2007-03-28
JP2007084704 2007-03-28
JP2007-170096 2007-06-28
JP2007170096 2007-06-28
JP2007186843A JP4702636B2 (ja) 2007-07-18 2007-07-18 磁気式エンコーダーとセンサー保持機構部
JP2007-186843 2007-07-18
JP2007-241046 2007-09-18
JP2007241046A JP4702637B2 (ja) 2007-03-28 2007-09-18 磁気式エンコーダー

Publications (1)

Publication Number Publication Date
WO2008117596A1 true WO2008117596A1 (ja) 2008-10-02

Family

ID=39788335

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052926 WO2008117596A1 (ja) 2007-03-28 2008-02-21 磁気エンコーダー

Country Status (1)

Country Link
WO (1) WO2008117596A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011145563A1 (ja) * 2010-05-17 2011-11-24 日立金属株式会社 磁気式エンコーダ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143766A (en) * 1981-02-27 1982-09-06 Matsushita Electric Ind Co Ltd Head device
JPH04106714A (ja) * 1990-08-28 1992-04-08 Mitsubishi Electric Corp 磁気ヘッドの製造方法
JPH04127506U (ja) * 1991-05-10 1992-11-20 オリンパス光学工業株式会社 位置検出機構
JPH07122017A (ja) * 1993-10-19 1995-05-12 Nec Corp ハードディスク装置用の磁気ヘッド支持機構

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143766A (en) * 1981-02-27 1982-09-06 Matsushita Electric Ind Co Ltd Head device
JPH04106714A (ja) * 1990-08-28 1992-04-08 Mitsubishi Electric Corp 磁気ヘッドの製造方法
JPH04127506U (ja) * 1991-05-10 1992-11-20 オリンパス光学工業株式会社 位置検出機構
JPH07122017A (ja) * 1993-10-19 1995-05-12 Nec Corp ハードディスク装置用の磁気ヘッド支持機構

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011145563A1 (ja) * 2010-05-17 2011-11-24 日立金属株式会社 磁気式エンコーダ
JP5365744B2 (ja) * 2010-05-17 2013-12-11 日立金属株式会社 磁気式エンコーダ
US8810238B2 (en) 2010-05-17 2014-08-19 Hitachi Metals, Ltd. Magnetic encoder
KR101728580B1 (ko) 2010-05-17 2017-04-19 히타치 긴조쿠 가부시키가이샤 자기식 인코더

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