Novel Method for Magnetic Field Vector Measurement Based on Dual-Axial Tunneling Magnetoresistive Sensors

We have prepared a dual-axial tunneling magnetoresistive (TMR) sensor for magnetic field vector measurement. Due to the measurement error caused by the crossfield effect, a theoretical single-domain model of magnetic tunneling junction was developed based on the Stoner-Wohlfarth model and utilized t...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2017-08, Vol.53 (8), p.1-6
Main Authors: Gen Zhao, Jun Hu, Yong Ouyang, Wenzhi Chang, Zhongxu Wang, Wang, Shan X., Jinliang He, Jiangang Bi
Format: Article
Language:English
Subjects:
Dual-axial sensor
Error analysis
Error detection
Magnetic field measurement
magnetic field vector
Magnetic fields
Magnetic sensors
Magnetic tunneling
Magnetism
Magnetization
Magnetoresistivity
Sensor phenomena and characterization
Sensors
single-domain model
tunneling magnetoresistance (TMR)
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Description
Summary:We have prepared a dual-axial tunneling magnetoresistive (TMR) sensor for magnetic field vector measurement. Due to the measurement error caused by the crossfield effect, a theoretical single-domain model of magnetic tunneling junction was developed based on the Stoner-Wohlfarth model and utilized to depict the output characteristics of the sensor in a rotating external magnetic field in the linear range of the sensor. Experimental and calculation results indicate that the proposed theoretical model based on the dual-axial TMR sensor provides an accurate result in magnetic field vector measurement in terms of both the magnitude and angle, avoiding the crossfield error effectively.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2017.2655007