基于各向异性磁电阻和反常能斯特效应的角位置传感器
Angular Position Sensor Based on Anisotropic Magnetoresistive and Anomalous Nernst Effect
AI总结：
本研究提出一种基于单个惠斯通电桥的磁性位置传感器，结合各向异性磁电阻和反常能斯特效应信号，实现0°至360°全角度检测，在100至10000 Oe磁场范围内平均误差0.51°至1.05°。
摘要：
磁性位置传感器在工业领域和消费产品中有着广泛的应用。然而，使用单个磁性传感器在宽磁场范围内测量0°至360°的全角度仍然是一个挑战。在此，我们提出了一种基于单个铁磁层构成的单个惠斯通电桥结构的磁性位置传感器。通过同时测量来自电桥的各向异性磁电阻（AMR）信号以及来自两个相互垂直的惠斯通电桥臂上的横向端口的两个反常能斯特效应（ANE）信号，我们证明了使用单个电桥传感器可以实现0°至360°的角度检测。AMR和ANE信号的结合使用使得在100 Oe至10,000 Oe的磁场范围内，平均角度误差在0.51°至1.05°之间。
英文摘要：
Magnetic position sensors find extensive applications in various industrial sectors and consumer products. However, measuring angles in the full range of 0° to 360° in a wide field range using a single magnetic sensor remains a challenge. Here, we propose a magnetic position sensor based on a single Wheatstone bridge structure made from a single ferromagnetic layer. By measuring the anisotropic magnetoresistance (AMR) signal from the bridge and two sets of anomalous Nernst effect (ANE) signals from the transverse ports on two perpendicular Wheatstone bridge arms concurrently, we show that it is possible to achieve 0° to 360° angle detection using a single bridge sensor. The combined use of AMR and ANE signals allows to achieve a mean angle error in the range of 0.51° to 1.05° within a field range of 100 Oe to 10,000 Oe.
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