高性能毫米级电磁发生器

IF 19 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Jin Pyo Lee, Xinran Zhou, Yangyang Xin, Dace Gao, Peiwen Huang, Pooi See Lee
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引用次数: 0

摘要

电磁发生器(EMG)具有高可靠性、高功率密度、长寿命、适用于极端环境等明显优势,是传统化学电池的一种很有前途的替代方案。近年来,肌电图采用磁悬浮结构和磁通量集中器(MFC)方法,通过引入磁斥力和集中磁场来提高电输出性能。然而,随着EMG设备尺寸的缩小,磁体之间的不良相互作用和面积不足严重限制了MFC的性能。本文设计了一种高性能的毫米级电磁发生器(mmEMG),该毫米级电磁发生器是通过在线圈两端的MFC膜产生高浓度的磁通来实现的。通过仿真研究了不同结构参数对MFC的影响,并进行了实验验证。同时,通过不同软磁材料的表征,研究了磁性能对MFC的影响。通过这一工艺,mmEMG得到了优化,MFC器件显示4 mWcm−3,尽管其重量轻,尺寸小,在电输出方面提高了5.6倍。最后,成功演示了商用电子设备的供电,并通过机器学习将设备与软夹持器集成在一起,构建了基于自供电力反馈的夹持器控制系统。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

High-Performance Millimeter Scale Electromagnetic Generator

High-Performance Millimeter Scale Electromagnetic Generator

High-Performance Millimeter Scale Electromagnetic Generator

Electromagnetic generator (EMG) is a promising alternative solution to traditional chemical batteries due to its distinct advantages such as high reliability, high power density, long lifetime, and wide applicability to extreme environments. Recently, the EMG has been developed with magnetic levitation structure and magnetic flux concentrator (MFC) methods to increase the electrical output performance by introducing magnetic repulsive force and concentrating magnetic field. However, as the EMG device scales down in dimension, the undesirable interaction between magnets and insufficient area severely limits the performance of the MFC. Here, a high-performance millimeter scale electromagnetic generator (mmEMG) is devised by the MFC films on both ends of coils inducing highly concentrated magnetic flux. The effect of the MFC is investigated depending on various structural parameters by simulation, and confirmed experimentally. Also, the influence of magnetic properties on the MFC by characterization with different soft magnetic materials is studied. With this process, the mmEMG is optimized with the MFC device showing 4 mWcm−3 despite its light weight and tiny size, a 5.6-fold improvement in terms of electrical output. Finally, powering commercial electronics are successfully demonstrated and constructed a self-powered force feedback-based gripper control system by integrating the device with the soft gripper via machine learning.

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来源期刊
Advanced Functional Materials
Advanced Functional Materials 工程技术-材料科学:综合
CiteScore
29.50
自引率
4.20%
发文量
2086
审稿时长
2.1 months
期刊介绍: Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.
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