WO1998048291A3 - Magnetic field sensor comprising a wheatstone bridge - Google Patents
Magnetic field sensor comprising a wheatstone bridge Download PDFInfo
- Publication number
- WO1998048291A3 WO1998048291A3 PCT/IB1998/000331 IB9800331W WO9848291A3 WO 1998048291 A3 WO1998048291 A3 WO 1998048291A3 IB 9800331 W IB9800331 W IB 9800331W WO 9848291 A3 WO9848291 A3 WO 9848291A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic field
- field sensor
- wheatstone bridge
- point
- resistive elements
- Prior art date
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
-
- 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
- G01R33/096—Magnetoresistive devices anisotropic magnetoresistance sensors
Abstract
A magnetic field sensor comprising: a plurality of resistive elements (11a, 11a'; 11b, 11b') in a Wheatstone bridge configuration (1), whereby at least one element demonstrates a magneto-resistive effect; means for causing a measurement current to pass from a first point (5) through the bridge (1) to a second point (7); a conductive track (19) which runs in proximity to the resistive elements (11a, 11a'; 11b, 11b') but is electrically insulated therefrom, for the purpose of magnetically biasing the resistive elements with a biasing current, whereby the second point (7) is electrically connected to the conductive track (19), so that the measurement current is also employed as the biasing current.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98904349A EP0910802A2 (en) | 1997-04-18 | 1998-03-12 | Magnetic field sensor comprising a wheatstone bridge |
JP10529326A JP2000512763A (en) | 1997-04-18 | 1998-03-12 | Magnetic field sensor with Wheatstone bridge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97201143.1 | 1997-04-18 | ||
EP97201143 | 1997-04-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998048291A2 WO1998048291A2 (en) | 1998-10-29 |
WO1998048291A3 true WO1998048291A3 (en) | 1999-01-21 |
Family
ID=8228219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1998/000331 WO1998048291A2 (en) | 1997-04-18 | 1998-03-12 | Magnetic field sensor comprising a wheatstone bridge |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0910802A2 (en) |
JP (1) | JP2000512763A (en) |
WO (1) | WO1998048291A2 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005047413B8 (en) * | 2005-02-23 | 2012-06-06 | Infineon Technologies Ag | A magnetic field sensor element and method for performing an on-wafer function test, and methods of fabricating magnetic field sensor elements and methods of fabricating magnetic field sensor elements having an on-wafer function test |
US7635974B2 (en) | 2007-05-02 | 2009-12-22 | Magic Technologies, Inc. | Magnetic tunnel junction (MTJ) based magnetic field angle sensor |
US7923987B2 (en) | 2007-10-08 | 2011-04-12 | Infineon Technologies Ag | Magnetic sensor integrated circuit with test conductor |
US8559139B2 (en) | 2007-12-14 | 2013-10-15 | Intel Mobile Communications GmbH | Sensor module and method for manufacturing a sensor module |
DE102008013427A1 (en) * | 2008-03-10 | 2009-11-05 | Siemens Aktiengesellschaft | Arrangement for measuring a current intensity, switching arrangement and method for measuring a current intensity |
US8080993B2 (en) | 2008-03-27 | 2011-12-20 | Infineon Technologies Ag | Sensor module with mold encapsulation for applying a bias magnetic field |
CN202013413U (en) * | 2011-04-06 | 2011-10-19 | 江苏多维科技有限公司 | Single chip bridge type magnetic field sensor |
CN102226836A (en) * | 2011-04-06 | 2011-10-26 | 江苏多维科技有限公司 | Single-chip bridge magnetic field sensor and preparation method thereof |
US9104922B2 (en) * | 2012-06-15 | 2015-08-11 | Honeywell International Inc. | Anisotropic magneto-resistance (AMR) gradiometer/magnetometer to read a magnetic track |
CN103116143B (en) * | 2013-01-22 | 2015-01-14 | 中国人民解放军国防科学技术大学 | Integrated high-accuracy triaxial magnetic sensor |
CN103323795B (en) * | 2013-06-21 | 2015-04-08 | 中国人民解放军国防科学技术大学 | Integrated three-axis magnetic sensor |
US9910106B2 (en) * | 2015-04-29 | 2018-03-06 | Everspin Technologies, Inc. | Magnetic field sensor with increased linearity |
US11131727B2 (en) | 2019-03-11 | 2021-09-28 | Tdk Corporation | Magnetic sensor device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5500590A (en) * | 1994-07-20 | 1996-03-19 | Honeywell Inc. | Apparatus for sensing magnetic fields using a coupled film magnetoresistive transducer |
DE19520178A1 (en) * | 1995-06-01 | 1996-12-05 | Siemens Ag | Magnetization device for magnetoresistive thin-film sensor elements in a bridge circuit |
WO1996038739A1 (en) * | 1995-06-01 | 1996-12-05 | Siemens Aktiengesellschaft | Magnetic field sensor with a bridge arrangement of magneto-resistive bridging elements |
WO1996038738A1 (en) * | 1995-06-01 | 1996-12-05 | Siemens Aktiengesellschaft | Magnetizing arrangement for a magneto-resistive thin-film sensor element with a bias layer part |
-
1998
- 1998-03-12 WO PCT/IB1998/000331 patent/WO1998048291A2/en not_active Application Discontinuation
- 1998-03-12 EP EP98904349A patent/EP0910802A2/en not_active Withdrawn
- 1998-03-12 JP JP10529326A patent/JP2000512763A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5500590A (en) * | 1994-07-20 | 1996-03-19 | Honeywell Inc. | Apparatus for sensing magnetic fields using a coupled film magnetoresistive transducer |
DE19520178A1 (en) * | 1995-06-01 | 1996-12-05 | Siemens Ag | Magnetization device for magnetoresistive thin-film sensor elements in a bridge circuit |
WO1996038739A1 (en) * | 1995-06-01 | 1996-12-05 | Siemens Aktiengesellschaft | Magnetic field sensor with a bridge arrangement of magneto-resistive bridging elements |
WO1996038738A1 (en) * | 1995-06-01 | 1996-12-05 | Siemens Aktiengesellschaft | Magnetizing arrangement for a magneto-resistive thin-film sensor element with a bias layer part |
Also Published As
Publication number | Publication date |
---|---|
WO1998048291A2 (en) | 1998-10-29 |
JP2000512763A (en) | 2000-09-26 |
EP0910802A2 (en) | 1999-04-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3028377B2 (en) | Magnetoresistive proximity sensor | |
WO1998048291A3 (en) | Magnetic field sensor comprising a wheatstone bridge | |
EP0801380A3 (en) | Giant magnetoresistive transducer with increased output signal | |
WO2003038423A3 (en) | Sensor assembly | |
DE68912720T2 (en) | Magnetoresistive magnetic field sensor. | |
DE60007270D1 (en) | locator | |
EP1518758A3 (en) | Device for detecting signals of sensors mounted in a vehicle | |
DE69828803D1 (en) | TECHNIQUES AND SYSTEMS FOR THE DETECTION OF ANALYTES | |
EP1052473A3 (en) | Magnetic measuring devices with reduced power consumption or stand by mode | |
US6326782B1 (en) | Two dimensional magnetoresistive position sensor | |
US4255708A (en) | Magnetoresistive position transducer with invariable peak signal | |
DE59915012D1 (en) | Inductive proximity switch with a preferably one-piece housing | |
CN109541280A (en) | Integrated current sensors | |
EP1184845A3 (en) | Magnetoresistive sensor, magnetoresistive head, and magnetic recording/reproducing apparatus | |
DK161005C (en) | DEVICE FOR PROTECTION AGAINST METALLIC FOREIGN MATERIALS | |
WO2007114870A3 (en) | Signal processing system and method | |
WO1998025155A3 (en) | Device for detecting a magnetic field | |
MXPA01012467A (en) | Current measuring apparatus for battery. | |
MY123940A (en) | Magnetic position sensor | |
WO1999008117A3 (en) | Thin-film magnetoresistive magnetic field sensor | |
EP1037289A3 (en) | Semiconductor magnetoresistance device, making method and magnetic sensor | |
CA2232916A1 (en) | Device for contactless sensing of the position of an object and related use | |
EP1396929A3 (en) | Measurement of the rate of change of current in switched reluctance machines | |
WO1999006844A3 (en) | Magnetic current sensing and short circuit detection in plate structure | |
ATE345506T1 (en) | FEEDTHROUGH ELEMENT FOR MEDIUM AND HIGH VOLTAGE APPLICATIONS |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): JP |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998904349 Country of ref document: EP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 1998904349 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1998904349 Country of ref document: EP |