Characteristics of 2D magnetic field sensor based on magnetic sensitivity diodes | Zendy

Xiaofeng Zhao | Zendy; Xianghong Yang | Zendy; Yang Yu | Zendy; Tong Wu | Zendy; Dianzhong Wen | Zendy

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Characteristics of 2D magnetic field sensor based on magnetic sensitivity diodes

Author(s) -

Xiaofeng Zhao,

Xianghong Yang,

Yang Yu,

Tong Wu,

Dianzhong Wen

Publication year - 2015

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4907695

Subject(s) - magnetic field , wheatstone bridge , sensitivity (control systems) , diode , physics , condensed matter physics , measure (data warehouse) , optoelectronics , engineering , voltage , electronic engineering , computer science , quantum mechanics , resistor , database

A two-dimensional (2D) magnetic field sensor is proposed in this paper. It contains two Wheatstone bridges composed of four magnetic sensitivity diodes(MSDs)with similar characteristics and four loading resistances. In order to realize the axial symmetric distribution of four MSDs, two MSDs with opposite magnetic sensitive directions were located along the x and −x axes, and two with opposite magnetic sensitive directions were located along the y and −y axes. The experimental results indicate that when VDD = 5.0 V, the magnetic sensitivities of the 2D magnetic sensor can reach SxB = 544 mV/T and SyB = 498 mV/T in the x and y directions, respectively. Consequently, it is possible to measure the two-dimensional magnetic field

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