Title:
磁気センサ、磁界の測定方法、電流センサ、および電流の測定方法
Document Type and Number:
Japanese Patent JP6529885
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a magnetic sensor with which it is possible to effectively use a range in a response profile that excels in linear responsiveness.SOLUTION: Provided is a magnetic sensor 10 bridge-configured by four magneto-resistive sensors GMR1, GMR2, GMR3, GMR4 the resistance value of which change in correspondence to a change in an external magnetic field. Each magneto-resistive sensor has an equal resistance change rate characteristic, formed in shape of a meander in which a belt-like long pattern is folded back, and the ferromagnetic fixed layers of two magneto-resistive sensors GMR1, GMR2 that provide an output are magnetized in directions along the width direction of the belt-like long pattern and opposite to each other, and the soft magnetic free layers of the magneto-resistive sensors GMR1, GMR2 are magnetized so as to have first components that are in mutually opposite directions along the longitudinal direction of the belt-like long pattern and second components that are in one direction along the width direction of the belt-like long pattern, the direction of the second components being a direction along the sensitivity axis of the magnetic sensor 10.SELECTED DRAWING: Figure 1
Inventors:
Yosuke Ide
Application Number:
JP2015205633A
Publication Date:
June 12, 2019
Filing Date:
October 19, 2015
Export Citation:
Assignee:
Alps Alpine Co., Ltd.
International Classes:
G01R15/20; G01R33/09; H01L43/08
Domestic Patent References:
| JP2014081384A | ||||
| JP2007064813A | ||||
| JP2015125019A | ||||
| JP2009250931A | ||||
| JP2004022614A | ||||
| JP2014063893A |
Foreign References:
| US20030057938 |
Attorney, Agent or Firm:
Katsuyuki Okubo
野▲崎▼ 照夫
Masahiro Matsushita
野▲崎▼ 照夫
Masahiro Matsushita