考虑趋肤效应的磁致伸缩位移传感器输出特性

doi:10.16180/j.cnki.issn1007-7820.2025.01.001

电子科技 ›› 2025, Vol. 38 ›› Issue (1): 1-5.doi: 10.16180/j.cnki.issn1007-7820.2025.01.001

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考虑趋肤效应的磁致伸缩位移传感器输出特性

肖墨, 吴钦木()

贵州大学电气工程学院,贵州贵阳 550025

收稿日期:2023-05-16 修回日期:2023-05-29 出版日期:2025-01-15 发布日期:2025-01-06
通讯作者: 吴钦木(1975-),男, E-mail:505953130@qq.com,博士,教授。研究方向:控制理论与应用、运动控制、电动汽车传动控制、电驱动系统效率优化和故障诊断、深度学习等。
作者简介:肖墨(1994-),女,硕士研究生。研究方向:磁致伸缩位移传感器。
基金资助:
国家自然科学基金(51867006)

Output Characteristics of Magnetostrictive Displacement Sensor Considering Skin Effect

XIAO Mo, WU Qinmu()

The Electrical Engineering College,Guizhou University,Guiyang 550025,China

Received:2023-05-16 Revised:2023-05-29 Online:2025-01-15 Published:2025-01-06
Supported by:
National Natural Science Foundation of China(51867006)

摘要/Abstract

摘要：

针对磁致伸缩位移传感器检测精度偏低的问题,文中提出了一种考虑趋肤效应的磁致伸缩位移传感器输出电压计算模型。在阐述磁致伸缩位移传感器工作原理的基础上分析了趋肤深度的影响,并考虑在威德曼效应和压磁效应的作用下进行理论分析。通过激励脉冲信号作用在波导丝上产生的趋肤深度,对激励脉冲电流在不同频率下作用在波导丝时与磁致伸缩位移传感器输出电压的关系进行仿真。采用搭建的实验平台进行验证,得出了激励脉冲电流频率的最佳参数值。仿真实验验证了考虑趋肤效应作用下磁致伸缩位移传感器输出电压模型的正确性,进一步提高了磁致伸缩位移传感器的检测精度并丰富了其数学模型。

关键词: 趋肤效应, 趋肤深度, 磁致伸缩, 激励脉冲, 传感器, 周向磁场, 数学模型, 回波, 干扰波

Abstract:

In view of the low detection accuracy of magnetostrictive displacement sensor, a calculation model of output voltage of magnetostrictive displacement sensor considering skin effect is proposed in this study. On the baisis of explaining the working principle of the magnetostrictive displacement sensor, the influence of skin depth is analyzed, and the Wiedemann effect and piezomagnetic effect are considered for theoretical analysis. The relationship between the excitation pulse current and the output voltage of the magnetostrictive displacement sensor is simulated by the skin depth generated by the excitation pulse signal acting on the waveguide wire at different frequencies. The optimal parameter value of excitation pulse current frequency is obtained using the experimental platform. Simulation experiments verify that the correctness of the output voltage model of the magnetostrictive displacement sensor considering the skin effect, indicating that the proposed model further improves the detection accuracy of the magnetostrictive displacement sensor and enriches the mathematical model.

Key words: skin effect, skin depth, magnetostrictive, excitation pulse, sensor, circumferential magnetic field, mathematical model, echo, interference wave

中图分类号:

TN712+.2

肖墨, 吴钦木. 考虑趋肤效应的磁致伸缩位移传感器输出特性[J]. 电子科技, 2025, 38(1): 1-5.

XIAO Mo, WU Qinmu. Output Characteristics of Magnetostrictive Displacement Sensor Considering Skin Effect[J]. Electronic Science and Technology, 2025, 38(1): 1-5.

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考虑趋肤效应的磁致伸缩位移传感器输出特性

Output Characteristics of Magnetostrictive Displacement Sensor Considering Skin Effect

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