电测与仪表2025，Vol.62Issue(3)：64-70,7.DOI:10.19753/j.issn1001-1390.2025.03.008
基于概率的TMR传感器磁滞建模方法的研究
Research on probability-based hysteresis modeling method of TMR sensor
摘要
Abstract
Hysteresis is one of the main factors affecting the measurement accuracy of TMR(tunnel magneto resist-ance)sensors.Generally,hysteresis is compensated by hysteresis analysis to reduce its influence.The commonly used hysteresis analyses are usually based on the Presach model,which has the disadvantages of complex modeling and slow calculation speed and cannot fully improve the measurement accuracy of TMR in practical application.Ai-ming at the modeling problem of TMR hysteresis characteristics,a modeling method based on hysteresis operator probability estimation is proposed in this paper.The probability distribution of the conversion threshold of the hys-teresis operator is estimated,and the static hysteresis model of the TMR sensor is constructed.The probability dis-tribution of the conversion speed of the hysteresis operator under different frequency magnetic fields is estimated and combined with the static hysteresis model,the dynamic hysteresis model of TMR sensor is constructed.Two typical TMR sensors are used to verify the proposed hysteresis model.The maximum error is reduced by 13.3％,and the variance is reduced by 52.1％.The results show that the proposed method can effectively improve the measurement accuracy of the TMR sensor,and the calculation is simple and has good applicability.关键词
TMR传感器/磁滞/概率Key words
TMR sensor/hysteresis/probability分类
信息技术与安全科学引用本文复制引用
李玉涛,王立亮,于浩,钱政..基于概率的TMR传感器磁滞建模方法的研究[J].电测与仪表,2025,62(3):64-70,7.基金项目
国家自然科学基金资助项目(61573046) （61573046）
