CN119404110A - 磁传感器 - Google Patents

磁传感器 Download PDF

Info

Publication number
CN119404110A
CN119404110A CN202380051855.4A CN202380051855A CN119404110A CN 119404110 A CN119404110 A CN 119404110A CN 202380051855 A CN202380051855 A CN 202380051855A CN 119404110 A CN119404110 A CN 119404110A
Authority
CN
China
Prior art keywords
magnetic field
wiring
magnetically permeable
magnetic
permeable portion
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202380051855.4A
Other languages
English (en)
Chinese (zh)
Inventor
菊地冠汰
梅津英治
小林俊宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of CN119404110A publication Critical patent/CN119404110A/zh
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N50/00—Galvanomagnetic devices
    • H10N50/10—Magnetoresistive devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0011—Arrangements or instruments for measuring magnetic variables comprising means, e.g. flux concentrators, flux guides, for guiding or concentrating the magnetic flux, e.g. to the magnetic sensor
    • 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
    • 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
    • G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
    • 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
    • G01R33/098—Magnetoresistive devices comprising tunnel junctions, e.g. tunnel magnetoresistance sensors

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Hall/Mr Elements (AREA)
  • Measuring Magnetic Variables (AREA)
CN202380051855.4A 2022-08-12 2023-03-03 磁传感器 Pending CN119404110A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022128866 2022-08-12
JP2022-128866 2022-08-12
PCT/JP2023/008061 WO2024034168A1 (ja) 2022-08-12 2023-03-03 磁気センサ

Publications (1)

Publication Number Publication Date
CN119404110A true CN119404110A (zh) 2025-02-07

Family

ID=89851443

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202380051855.4A Pending CN119404110A (zh) 2022-08-12 2023-03-03 磁传感器

Country Status (5)

Country Link
US (1) US20250172640A1 (https=)
JP (1) JP7766810B2 (https=)
CN (1) CN119404110A (https=)
DE (1) DE112023003456T5 (https=)
WO (1) WO2024034168A1 (https=)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5244374U (https=) * 1975-09-25 1977-03-29
JPH08233865A (ja) * 1995-02-28 1996-09-13 Victor Co Of Japan Ltd 電流検知ユニット
JP2002250759A (ja) * 2001-02-26 2002-09-06 Systec:Kk 磁気センサのバイアス構造
JP4573736B2 (ja) * 2005-08-31 2010-11-04 三菱電機株式会社 磁界検出装置
JP2008020402A (ja) * 2006-07-14 2008-01-31 Asahi Kasei Electronics Co Ltd 電流検出機構
US8659292B2 (en) * 2010-03-05 2014-02-25 Headway Technologies, Inc. MR sensor with flux guide enhanced hard bias structure
JP2012132889A (ja) * 2010-12-21 2012-07-12 Kohshin Electric Corp 磁気検出装置および電流検出装置
JP2015179042A (ja) * 2014-03-19 2015-10-08 株式会社デンソー 電流センサ
JP6525314B2 (ja) * 2015-05-28 2019-06-05 アルプスアルパイン株式会社 磁界検出装置

Also Published As

Publication number Publication date
WO2024034168A1 (ja) 2024-02-15
US20250172640A1 (en) 2025-05-29
JP7766810B2 (ja) 2025-11-10
JPWO2024034168A1 (https=) 2024-02-15
DE112023003456T5 (de) 2025-05-28

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