Experimental study on synchronous detection of output force in a self-sensing giant magnetostrictive actuator

IF 3.1 3区物理与天体物理 Q2 PHYSICS, APPLIED

Journal of Physics D: Applied Physics Pub Date : 2024-07-08 DOI:10.1088/1361-6463/ad5c74

Dongjian Xie, Yahui Zhang, Haomin Wu, Yikun Yang, Bintang Yang

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Abstract

This paper systematically investigates the real-time detection of static and dynamic output forces by a self-sensing giant magnetostrictive actuator (SSGMA). The online stiffness of the actuator is perceived as the sensing signal according to the ΔE effect of Terfenol-D. Numerical simulations are carried out to analyze the effects of the driving magnetic field and the hysteresis caused by magneto-mechanical coupling on the performance of self-sensing output force. Then the prototype is fabricated and tested to verify the self-sensing characteristics of SSGMA for the output force. The noise density of prototype is tested to be below 56.92 nV √Hz⁻¹. The experimental results illustrate that SSGMA has a self-detection sensitivity of 0.47 mV N⁻¹ for a static force with an amplitude of nearly 120 N. The SSGMA is able to synchronize the tracking of quasi-static and low-frequency dynamic output forces, respectively. The hereby proposed SSGMA further broadens the application scenario of precision actuation systems by synchronizing the detection and control of the output force without requiring external sensors.

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自感应巨型磁致伸缩致动器输出力同步检测实验研究

本文系统地研究了自感应巨磁致伸缩致动器（SSGMA）对静态和动态输出力的实时检测。根据 Terfenol-D 的 ΔE 效应，致动器的在线刚度被视为传感信号。通过数值模拟分析了驱动磁场和磁-机耦合引起的磁滞对自感输出力性能的影响。然后制作并测试了原型，以验证 SSGMA 输出力的自感应特性。经测试，原型的噪声密度低于 56.92 nV √Hz-1。实验结果表明，对于振幅接近 120 N 的静态力，SSGMA 的自检测灵敏度为 0.47 mV N-1。由此提出的 SSGMA 无需外部传感器即可同步检测和控制输出力，从而进一步拓宽了精密致动系统的应用范围。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Physics D: Applied Physics 物理-物理：应用

CiteScore

6.80

自引率

8.80%

发文量

835

审稿时长

2.1 months

期刊介绍： This journal is concerned with all aspects of applied physics research, from biophysics, magnetism, plasmas and semiconductors to the structure and properties of matter.

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