The error compensation for static hysteresis characteristics of Giant Magneto-Resistance sensor

被引：0
|
作者：
Zhao Xiaodong [1 ]
Qian Zheng [1 ]
Tian Yuan [1 ]
Wang Jingyi [1 ]
Yu Hao [1 ]
机构：
[1] Beihang Univ, Sch Instrument Sci & Optoelect Engn, Beijing, Peoples R China
来源：
2016 IEEE SENSORS APPLICATIONS SYMPOSIUM (SAS 2016) PROCEEDINGS | 2016年
关键词：
GMR sensor; magnetic field generator; hysteresis; error compensation; linearity;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The hysteresis is an important factor influencing the measurement accuracy of Giant Magneto-Resistance sensor (GMR). This paper takes the error compensation of static hysteresis as a breakthrough point to study. At first, a testing apparatus of static hysteresis characteristics is designed. After that, the method of polynomial hysteresis error compensation is proposed by T(x) model based on hyperbolic tangent function. Then the current or magnetic field value is obtained by inversing T(x) model. Compared to output of GMR sensor, T(x) inverse model reduces the influence of hysteresis on measurement accuracy, and improves the Linear working range and linearity.
引用
收藏
页码：517 / 521
页数：5
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