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首页> 外文会议>2019 IEEE International Conference on Industrial Technology >Comparison of Magnetic Field Sensor Technologies for the use in Wheel Speed Sensors
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Comparison of Magnetic Field Sensor Technologies for the use in Wheel Speed Sensors

机译：轮速传感器中使用的磁场传感器技术的比较

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摘要

The measurement of the rotational speed and angle of a rotating shaft is one of the most frequently used measurement in all fields of mechanical engineering. Different sensing principles, such as optical or magnetic, are commonly used. However, magnetic based sensors offer highest robustness to harsh and dirty environments and are therefore the preferred solution in automotive applications. Even if magnetic based speed sensors exist since decades, their performance is continuously improved and adjusted to the different applications. The paper introduces the sensing arrangement for speed measurement of a rotating shaft. The state of the art magnetic sensing technologies, which are Hall, AMR (anisotropic magnetic resistance), GMR (giant magnetic resistance) and TMR (tunneling magnetic resistance), are described and their limitations are shown. In addition, the recently developed high-linearity-TMR is introduced. The key parameters of the evaluated sensing technologies are compared to each other. The result shows that the recently developed high-linearity-TMR (tunneling magnetic resistance) sensing technology offers the best overall performance.
机译：在机械工程的所有领域中，旋转轴的转速和角度的测量是最常用的测量之一。通常使用不同的感测原理，例如光学或磁性。但是，基于磁性的传感器在恶劣和肮脏的环境中具有最高的鲁棒性，因此是汽车应用中的首选解决方案。即使基于磁性的速度传感器已经存在了几十年，它们的性能仍会不断提高并适应不同的应用。本文介绍了用于测量旋转轴速度的传感装置。描述了霍尔，AMR（各向异性磁阻），GMR（巨磁阻）和TMR（隧道磁阻）等最先进的磁传感技术，并显示了它们的局限性。另外，介绍了最近开发的高线性度TMR。将评估的传感技术的关键参数进行相互比较。结果表明，最近开发的高线性度（TMR）（隧道磁阻）传感技术提供了最佳的整体性能。

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