FI20045079A0 - Magnetoresistoreita käyttävä suhteellisen asennon havaitseva laite - Google Patents

Magnetoresistoreita käyttävä suhteellisen asennon havaitseva laite

Info

Publication number
FI20045079A0
FI20045079A0 FI20045079A FI20045079A FI20045079A0 FI 20045079 A0 FI20045079 A0 FI 20045079A0 FI 20045079 A FI20045079 A FI 20045079A FI 20045079 A FI20045079 A FI 20045079A FI 20045079 A0 FI20045079 A0 FI 20045079A0
Authority
FI
Finland
Prior art keywords
relative position
position detector
magnetic resistors
resistors
magnetic
Prior art date
Application number
FI20045079A
Other languages
English (en)
Swedish (sv)
Other versions
FI20045079A (fi
Inventor
Mikko Ollila
Original Assignee
Nokia Corp
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 Nokia Corp filed Critical Nokia Corp
Priority to FI20045079A priority Critical patent/FI20045079A/fi
Publication of FI20045079A0 publication Critical patent/FI20045079A0/fi
Priority to US11/091,363 priority patent/US7352172B2/en
Publication of FI20045079A publication Critical patent/FI20045079A/fi

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
    • 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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/282—Autofocusing of zoom lenses
    • 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
    • G01D2205/85—Determining the direction of movement of an encoder, e.g. of an incremental encoder

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
FI20045079A 2004-03-16 2004-03-16 Magnetoresistoreita käyttävä suhteellisen asennon havaitseva laite FI20045079A (fi)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20045079A FI20045079A (fi) 2004-03-16 2004-03-16 Magnetoresistoreita käyttävä suhteellisen asennon havaitseva laite
US11/091,363 US7352172B2 (en) 2004-03-16 2005-03-16 Relative position detecting apparatus using magneto-resistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20045079A FI20045079A (fi) 2004-03-16 2004-03-16 Magnetoresistoreita käyttävä suhteellisen asennon havaitseva laite

Publications (2)

Publication Number Publication Date
FI20045079A0 true FI20045079A0 (fi) 2004-03-16
FI20045079A FI20045079A (fi) 2005-09-17

Family

ID=32039507

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20045079A FI20045079A (fi) 2004-03-16 2004-03-16 Magnetoresistoreita käyttävä suhteellisen asennon havaitseva laite

Country Status (2)

Country Link
US (1) US7352172B2 (fi)
FI (1) FI20045079A (fi)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4400500B2 (ja) * 2005-04-06 2010-01-20 コニカミノルタオプト株式会社 位置検出器および位置決め装置
US7532115B2 (en) * 2005-12-29 2009-05-12 Honeywell Asca Inc. Wireless position feedback device and system
JP5349157B2 (ja) * 2009-06-19 2013-11-20 Ｎｔｎ株式会社 回転検出装置および回転検出装置付き軸受
US9203476B2 (en) * 2013-03-15 2015-12-01 Google Inc. System and method for code communication
US9042716B2 (en) 2013-08-15 2015-05-26 Allegro Microsystems, Llc Method and apparatus for determining linear position using multiple magnetic field sensors
JP2017138143A (ja) * 2016-02-02 2017-08-10 Tdk株式会社 変位検出装置および角速度検出装置
CN112379502A (zh) * 2019-07-29 2021-02-19 Oppo广东移动通信有限公司 镜头模组、镜头模组的控制方法、成像装置和电子设备
DE102021125964A1 (de) * 2021-10-06 2023-04-06 Infineon Technologies Ag Ein Positionssensorsystem, ein optisches Linsensystem und eine Anzeige

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3259316B2 (ja) * 1992-02-07 2002-02-25 ソニー株式会社 位置検出装置、レンズ装置、ビデオカメラ
US5587846A (en) * 1994-07-15 1996-12-24 Minolta Co., Ltd. Lens moving apparatus
JP3973495B2 (ja) * 2002-06-19 2007-09-12 アルプス電気株式会社 磁気ヘッド及びその製造方法

Also Published As

Publication number Publication date
FI20045079A (fi) 2005-09-17
US7352172B2 (en) 2008-04-01
US20050219962A1 (en) 2005-10-06

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Legal Events

Date Code Title Description
FD Application lapsed