Measurement of Permeability for Ferrous Metallic Plates Using a Novel Lift-Off Compensation Technique on Phase Signature
Measurement of Permeability for Ferrous Metallic Plates Using a Novel Lift-Off Compensation Technique on Phase Signature
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DOI：
10.1109/jsen.2019.2916431
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发表时间：
2019-09-01
影响因子：
4.3
通讯作者：
Peyton, Anthony
中科院分区：
文献类型：
--
作者：
Lu, Mingyang;Huang, Ruochen;Peyton, Anthony
传感器的提离影响黑色和有色钢板电磁性能的预测。在本文中，我们开发了一种策略来解决这个问题的黑色金属板。随着提离的增加，钢板的测量阻抗的相位减小。同时，阻抗信号的幅度减小。基于这些事实，相位补偿算法被开发，该算法考虑阻抗信号的幅度来校正由于提离而引起的相位变化。在此基础上，提出了一种新的磁导率预测方法，并通过理论分析和实测结果进行了验证。在试验提离范围内，渗透率预测误差小于2%。
Lift-off of sensor affects the prediction of electromagnetic properties for both ferrous and non-ferrous steel plates. In this paper, we developed a strategy to address this issue for ferrous plates. With increased lift-off, the phase of the measured impedance for steel plates reduces. Meanwhile, the magnitude of the impedance signal decreases. Based on these facts, a phase compensation algorithm is developed which corrects the phase change due to lift-off considering the magnitude of the impedance signal. Further, a new magnetic permeability prediction technique is presented, which has been validated by analytical and measured results. With this new technique, the error in permeability prediction is less than 2% within the range of lift-offs tested.