KR100595078B1 - 자기 검출 장치 - Google Patents
자기 검출 장치 Download PDFInfo
- Publication number
- KR100595078B1 KR100595078B1 KR1020040092917A KR20040092917A KR100595078B1 KR 100595078 B1 KR100595078 B1 KR 100595078B1 KR 1020040092917 A KR1020040092917 A KR 1020040092917A KR 20040092917 A KR20040092917 A KR 20040092917A KR 100595078 B1 KR100595078 B1 KR 100595078B1
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic
- magnet
- lead frame
- magnetoresistive element
- processing circuit
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims abstract description 77
- 230000005405 multipole Effects 0.000 claims abstract description 29
- 230000005415 magnetization Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 38
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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
- G01D5/147—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 movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
-
- 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
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Measuring Magnetic Variables (AREA)
- Hall/Mr Elements (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims (4)
- 다극 착자된 회전체의 회전에 수반하는 자계의 변화에 대응하여 저항치가 변화하는 자기 저항 소자와,상기 자기 저항 소자와, 해당 자기 저항 소자의 저항치의 변화에 의거하여 상기 회전체의 다극 착자에 대응한 신호를 출력하는 신호 처리 회로부를 일체적으로 집적한 IC와,상기 회전체측의 일단에 상기 IC가 실장됨과 함께, 타단에 상기 신호 처리 회로부의 출력 신호를 외부로 출력하기 위한 외부 출력 단자가 접속되는 리드 프레임과,상기 자기 저항 소자에 바이어스 자계를 인가하는 자석과,상기 자석으로부터 발생하는 자력선의 방향을 교정하는 자성체 가이드를 구비한 자기 검출 장치로서,상기 IC, 상기 리드 프레임 및 상기 자성체 가이드는 제 1의 조립체로서 미리 일체적으로 조립되어 있고, 상기 자석 및 상기 외부 출력 단자는 제 2의 조립체로서 미리 일체적으로 조립되어 있는 것을 특징으로 하는 자기 검출 장치.
- 다극 착자된 회전체의 회전에 수반하는 자계의 변화에 대응하여 저항치가 변화하는 자기 저항 소자와,상기 자기 저항 소자와, 해당 자기 저항 소자의 저항치의 변화에 의거하여 상기 회전체의 다극 착자에 대응한 신호를 출력하는 신호 처리 회로부를 일체적으로 집적한 IC와,상기 신호 처리 회로부의 출력 신호를 외부로 출력하기 위한 외부 출력 단자에 접속되는 리드 프레임과,상기 자기 저항 소자에 바이어스 자계를 인가하는 자석과,상기 IC를 재치함과 함께, 상기 자석으로부터 발생하는 자력선의 방향을 교정하는 자성체 가이드를 구비한 자기 검출 장치로서,상기 IC, 상기 리드 프레임 및 상기 자성체 가이드는 제 1의 조립체로서 미리 일체적으로 조립되어 있고, 상기 자석 및 상기 외부 출력 단자는 제 2의 조립체로서 미리 일체적으로 조립되어 있는 것을 특징으로 하는 자기 검출 장치.
- 제 1항에 있어서,상기 리드 프레임의 상기 IC가 실장되는 부분은 자성체 가이드의 기능을 갖고 있는 것을 특징으로 하는 자기 검출 장치.
- 제 3항에 있어서,상기 리드 프레임의 상기 IC가 실장되는 부분은 상기 자석에 접촉하도록 상기 자석에 근접하여 배치되어 있는 것을 특징으로 하는 자기 검출 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2004-00176723 | 2004-06-15 | ||
JP2004176723A JP4969026B2 (ja) | 2004-06-15 | 2004-06-15 | 磁気検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050119077A KR20050119077A (ko) | 2005-12-20 |
KR100595078B1 true KR100595078B1 (ko) | 2006-06-30 |
Family
ID=34858535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040092917A KR100595078B1 (ko) | 2004-06-15 | 2004-11-15 | 자기 검출 장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6937010B1 (ko) |
JP (1) | JP4969026B2 (ko) |
KR (1) | KR100595078B1 (ko) |
DE (1) | DE102004059374B4 (ko) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7290448B2 (en) * | 2004-09-10 | 2007-11-06 | Yamaha Corporation | Physical quantity sensor, lead frame, and manufacturing method therefor |
DE102004060298A1 (de) * | 2004-12-15 | 2006-06-22 | Robert Bosch Gmbh | Magnetsensoranordnung |
JP2007134135A (ja) * | 2005-11-09 | 2007-05-31 | Toshiba Corp | X線イメージ管の歪補正装置 |
JP4977378B2 (ja) * | 2006-02-23 | 2012-07-18 | 山梨日本電気株式会社 | 磁気センサ、回転検出装置及び位置検出装置 |
US7816772B2 (en) * | 2007-03-29 | 2010-10-19 | Allegro Microsystems, Inc. | Methods and apparatus for multi-stage molding of integrated circuit package |
JP5165963B2 (ja) * | 2007-08-14 | 2013-03-21 | 新科實業有限公司 | 磁気センサ及びその製造方法 |
US9823090B2 (en) | 2014-10-31 | 2017-11-21 | Allegro Microsystems, Llc | Magnetic field sensor for sensing a movement of a target object |
DE102008008830A1 (de) * | 2008-02-14 | 2009-08-27 | Forschungszentrum Jülich GmbH | Magnetischer Näherungssensor |
WO2011158633A1 (ja) * | 2010-06-17 | 2011-12-22 | アイシン精機株式会社 | 電流センサ、及び、電流センサアレイ |
US9666788B2 (en) | 2012-03-20 | 2017-05-30 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame |
US9812588B2 (en) | 2012-03-20 | 2017-11-07 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
US10234513B2 (en) | 2012-03-20 | 2019-03-19 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
US9810519B2 (en) | 2013-07-19 | 2017-11-07 | Allegro Microsystems, Llc | Arrangements for magnetic field sensors that act as tooth detectors |
US10495699B2 (en) | 2013-07-19 | 2019-12-03 | Allegro Microsystems, Llc | Methods and apparatus for magnetic sensor having an integrated coil or magnet to detect a non-ferromagnetic target |
US10145908B2 (en) | 2013-07-19 | 2018-12-04 | Allegro Microsystems, Llc | Method and apparatus for magnetic sensor producing a changing magnetic field |
JP6359342B2 (ja) * | 2014-05-29 | 2018-07-18 | 愛三工業株式会社 | 回転角度検出センサ |
US9719806B2 (en) | 2014-10-31 | 2017-08-01 | Allegro Microsystems, Llc | Magnetic field sensor for sensing a movement of a ferromagnetic target object |
US9823092B2 (en) | 2014-10-31 | 2017-11-21 | Allegro Microsystems, Llc | Magnetic field sensor providing a movement detector |
US9720054B2 (en) | 2014-10-31 | 2017-08-01 | Allegro Microsystems, Llc | Magnetic field sensor and electronic circuit that pass amplifier current through a magnetoresistance element |
US10712403B2 (en) | 2014-10-31 | 2020-07-14 | Allegro Microsystems, Llc | Magnetic field sensor and electronic circuit that pass amplifier current through a magnetoresistance element |
JP5865988B1 (ja) * | 2014-12-19 | 2016-02-17 | 三菱電機株式会社 | 回転センサ |
DE102015008503A1 (de) * | 2015-07-03 | 2017-01-05 | TE Connectivity Sensors Germany GmbH | Elektrisches Bauteil und Herstellungsverfahren zum Herstellen eines solchen elektrischen Bauteils |
US10012518B2 (en) | 2016-06-08 | 2018-07-03 | Allegro Microsystems, Llc | Magnetic field sensor for sensing a proximity of an object |
US10041810B2 (en) | 2016-06-08 | 2018-08-07 | Allegro Microsystems, Llc | Arrangements for magnetic field sensors that act as movement detectors |
US10260905B2 (en) | 2016-06-08 | 2019-04-16 | Allegro Microsystems, Llc | Arrangements for magnetic field sensors to cancel offset variations |
US10641842B2 (en) | 2017-05-26 | 2020-05-05 | Allegro Microsystems, Llc | Targets for coil actuated position sensors |
US10310028B2 (en) | 2017-05-26 | 2019-06-04 | Allegro Microsystems, Llc | Coil actuated pressure sensor |
US11428755B2 (en) | 2017-05-26 | 2022-08-30 | Allegro Microsystems, Llc | Coil actuated sensor with sensitivity detection |
US10324141B2 (en) | 2017-05-26 | 2019-06-18 | Allegro Microsystems, Llc | Packages for coil actuated position sensors |
US10996289B2 (en) | 2017-05-26 | 2021-05-04 | Allegro Microsystems, Llc | Coil actuated position sensor with reflected magnetic field |
US10837943B2 (en) | 2017-05-26 | 2020-11-17 | Allegro Microsystems, Llc | Magnetic field sensor with error calculation |
US10866117B2 (en) | 2018-03-01 | 2020-12-15 | Allegro Microsystems, Llc | Magnetic field influence during rotation movement of magnetic target |
US11255700B2 (en) | 2018-08-06 | 2022-02-22 | Allegro Microsystems, Llc | Magnetic field sensor |
US10823586B2 (en) | 2018-12-26 | 2020-11-03 | Allegro Microsystems, Llc | Magnetic field sensor having unequally spaced magnetic field sensing elements |
US11061084B2 (en) | 2019-03-07 | 2021-07-13 | Allegro Microsystems, Llc | Coil actuated pressure sensor and deflectable substrate |
US10955306B2 (en) | 2019-04-22 | 2021-03-23 | Allegro Microsystems, Llc | Coil actuated pressure sensor and deformable substrate |
US11280637B2 (en) | 2019-11-14 | 2022-03-22 | Allegro Microsystems, Llc | High performance magnetic angle sensor |
US11237020B2 (en) | 2019-11-14 | 2022-02-01 | Allegro Microsystems, Llc | Magnetic field sensor having two rows of magnetic field sensing elements for measuring an angle of rotation of a magnet |
JP6893267B1 (ja) | 2020-03-10 | 2021-06-23 | 三菱電機株式会社 | 磁気検出装置 |
US11262422B2 (en) | 2020-05-08 | 2022-03-01 | Allegro Microsystems, Llc | Stray-field-immune coil-activated position sensor |
US11493361B2 (en) | 2021-02-26 | 2022-11-08 | Allegro Microsystems, Llc | Stray field immune coil-activated sensor |
US11578997B1 (en) | 2021-08-24 | 2023-02-14 | Allegro Microsystems, Llc | Angle sensor using eddy currents |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5637995A (en) * | 1992-12-09 | 1997-06-10 | Nippondenso Co., Ltd. | Magnetic detection device having a magnet including a stepped portion for eliminating turbulence at the MR sensor |
JPH09166612A (ja) * | 1995-12-18 | 1997-06-24 | Nissan Motor Co Ltd | 磁気センサ |
JP2000018967A (ja) * | 1998-07-06 | 2000-01-21 | Mitsubishi Electric Corp | 磁気検出装置 |
JP3655897B2 (ja) | 2002-08-07 | 2005-06-02 | 三菱電機株式会社 | 磁気検出装置 |
JP3720801B2 (ja) * | 2002-10-24 | 2005-11-30 | 三菱電機株式会社 | 磁気検出装置 |
-
2004
- 2004-06-15 JP JP2004176723A patent/JP4969026B2/ja not_active Expired - Fee Related
- 2004-11-02 US US10/978,466 patent/US6937010B1/en active Active
- 2004-11-15 KR KR1020040092917A patent/KR100595078B1/ko active IP Right Grant
- 2004-12-09 DE DE102004059374A patent/DE102004059374B4/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20050119077A (ko) | 2005-12-20 |
DE102004059374B4 (de) | 2007-05-31 |
US6937010B1 (en) | 2005-08-30 |
JP4969026B2 (ja) | 2012-07-04 |
DE102004059374A1 (de) | 2006-01-26 |
JP2006003096A (ja) | 2006-01-05 |
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