WO2009041023A1 - 回転検出装置および回転検出装置付き軸受 - Google Patents

回転検出装置および回転検出装置付き軸受 Download PDF

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Publication number
WO2009041023A1
WO2009041023A1 PCT/JP2008/002631 JP2008002631W WO2009041023A1 WO 2009041023 A1 WO2009041023 A1 WO 2009041023A1 JP 2008002631 W JP2008002631 W JP 2008002631W WO 2009041023 A1 WO2009041023 A1 WO 2009041023A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
detecting device
rotation detecting
encoders
difference
Prior art date
Application number
PCT/JP2008/002631
Other languages
English (en)
French (fr)
Inventor
Toru Takahashi
Shintarou Ueno
Pascal Desbiolles
Original Assignee
Ntn Corporation
S.N.R.Roulements S.A.
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 Ntn Corporation, S.N.R.Roulements S.A. filed Critical Ntn Corporation
Priority to EP08833360.4A priority Critical patent/EP2244069B1/en
Priority to US12/733,890 priority patent/US8319493B2/en
Publication of WO2009041023A1 publication Critical patent/WO2009041023A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • 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
    • 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
    • G01D5/24471—Error correction
    • G01D5/2448—Correction of gain, threshold, offset or phase control
    • 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
    • G01D5/24471—Error correction
    • G01D5/2449—Error correction using hard-stored calibration data
    • 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
    • G01D5/2452—Incremental encoders incorporating two or more tracks having an (n, n+1, ...) relationship
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors
    • 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
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/80—Manufacturing details of magnetic targets for magnetic encoders

Abstract

　構造が簡単で、磁気エンコーダの取付位置に左右されずに精度良く絶対角度を検出できる回転検出装置、およびこの回転検出装置を搭載した回転検出装置付き軸受を提供する。この回転検出装置１は、同心のリング状に設けられ互いに磁極数が異なる複数の磁気エンコーダ２Ａ，２Ｂと、これら各磁気エンコーダ２Ａ，２Ｂの磁界をそれぞれ検出する複数の磁気センサ３Ａ，３Ｂとを備える。前記各磁気センサ３Ａ，３Ｂは、磁気エンコーダ２Ａ，２Ｂの磁極内における位置の情報を検出する機能を有したものである。これら、各磁気センサ３Ａ，３Ｂの検出した磁界信号の位相差を求める位相差検出手段６を設ける。この検出した位相差に基づいて磁気エンコーダの絶対角度を算出する角度算出手段７を設ける。磁気エンコーダ２Ａ，２Ｂの取付位置に起因して磁気センサ３Ａ，３Ｂの検出した磁界信号に生じる初期位相差を補正する補正手段１２を設ける。
PCT/JP2008/002631 2007-09-27 2008-09-24 回転検出装置および回転検出装置付き軸受 WO2009041023A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08833360.4A EP2244069B1 (en) 2007-09-27 2008-09-24 Rotation detecting device, and bearing having the rotation detecting device
US12/733,890 US8319493B2 (en) 2007-09-27 2008-09-24 Rotation detecting device and bearing assembly equipped with such rotation detecting device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-250443 2007-09-27
JP2007250443A JP5081553B2 (ja) 2007-09-27 2007-09-27 回転検出装置および回転検出装置付き軸受

Publications (1)

Publication Number Publication Date
WO2009041023A1 true WO2009041023A1 (ja) 2009-04-02

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Country Status (4)

Country Link
US (1) US8319493B2 (ja)
EP (1) EP2244069B1 (ja)
JP (1) JP5081553B2 (ja)
WO (1) WO2009041023A1 (ja)

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WO2011011745A2 (en) * 2009-07-24 2011-01-27 Varian, Inc Angular position sensing based on magnetically induced beam deformation
US20150130571A1 (en) * 2013-11-12 2015-05-14 Uchiyama Manufacturing Corp. Magnetization Apparatus for Magnet of Magnetic Encoder and Method Thereof

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JP5583317B2 (ja) 2007-02-23 2014-09-03 Ｎｔｎ株式会社 回転検出装置および回転検出装置付き軸受
EP2778624B1 (en) * 2008-09-11 2015-09-09 NTN Corporation Rotation detecting device and bearing with rotation detecting device
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JP5379748B2 (ja) * 2010-06-03 2013-12-25 Ｎｔｎ株式会社 磁気エンコーダ
JP2012007706A (ja) * 2010-06-28 2012-01-12 Nsk Ltd センサ付き転がり軸受
JP5218491B2 (ja) * 2010-07-29 2013-06-26 株式会社デンソー 回転角度検出装置
US8760153B2 (en) * 2011-02-24 2014-06-24 Dexter Magnetic Technologies, Inc. High resolution absolute orientation rotary magnetic encoder
JP5333513B2 (ja) * 2011-05-16 2013-11-06 株式会社デンソー 回転センサ
DE102011050834B4 (de) 2011-06-03 2022-02-17 Ic - Haus Gmbh Integrierte Schaltungsanordnung mit Hallsensoren und Positionsmessvorrichtung
JP5973278B2 (ja) * 2012-08-16 2016-08-23 Ntn株式会社 磁気エンコーダの着磁装置
JP5857932B2 (ja) * 2012-10-03 2016-02-10 アイシン精機株式会社 センサユニットの製造方法
FR3005728B1 (fr) 2013-05-17 2016-09-30 Hutchinson Codeur de position
US9976874B2 (en) 2013-07-16 2018-05-22 Ntn Corporation Magnetic encoder device and rotation detection device
JP6241188B2 (ja) * 2013-10-16 2017-12-06 日本精工株式会社 エンコーダ付組み合わせシールリング及びエンコーダ付転がり軸受ユニット
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JP6877170B2 (ja) * 2017-02-14 2021-05-26 日本電産サンキョー株式会社 ロータリエンコーダ及びその絶対角度位置検出方法
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RU202950U1 (ru) * 2020-02-04 2021-03-16 Акционерное общество "Конструкторское бюро точного машиностроения имени А.Э. Нудельмана" Дифференциальный емкостной датчик ограниченного угла поворота вала
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011011745A2 (en) * 2009-07-24 2011-01-27 Varian, Inc Angular position sensing based on magnetically induced beam deformation
WO2011011745A3 (en) * 2009-07-24 2011-06-09 Varian, Inc Angular position sensing based on magnetically induced beam deformation
US8212566B2 (en) 2009-07-24 2012-07-03 Agilent Technologies, Inc. Angular position sensing based on magnetically induced beam deformation
US20150130571A1 (en) * 2013-11-12 2015-05-14 Uchiyama Manufacturing Corp. Magnetization Apparatus for Magnet of Magnetic Encoder and Method Thereof
US9607747B2 (en) * 2013-11-12 2017-03-28 Uchiyama Manufacturing Corp. Magnetization apparatus for magnet of magnetic encoder and method thereof
US9799438B2 (en) 2013-11-12 2017-10-24 Uchiyama Manufacturing Corp. Method for producing magnet of magnetic encoder

Also Published As

Publication number Publication date
EP2244069A4 (en) 2014-07-30
JP2009080058A (ja) 2009-04-16
US8319493B2 (en) 2012-11-27
EP2244069A1 (en) 2010-10-27
JP5081553B2 (ja) 2012-11-28
US20100225309A1 (en) 2010-09-09
EP2244069B1 (en) 2017-08-23

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