利用交流磁场造成的涡流损耗的对流热驱动无系绳游泳器

IF 1.5 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY Journal of the Physical Society of Japan Pub Date : 2024-03-01 DOI:10.7566/jpsj.93.034802
Hideyuki Sugioka, Ryo Takeda
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引用次数: 0

摘要

无系微型游泳器在各种应用中都是必不可少的。在这里,我们提出了一种利用对流和交流磁场造成的涡流损耗的热驱动无系绳游泳器,并研究了该游泳器的性能。具体来说,我们证明了通过施加 10.2 mT、频率为 11.7 kHz 的交流磁场,一个带有 Cu 斜梁的浮动物体可以 1.8 mm/s 的速度移动。此外,通过测量磁场下铜板的温度,我们明确了涡流的作用。此外,我们还通过测量不同角度的斜射束和外加磁场,阐明了对流游泳器的设计理念。我们的研究结果将有助于开发创新的无系热驱动微型机器人和微型游泳器。
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Thermally Driven Untethered Swimmer Using a Convection Flow with the Eddy Current Loss Due to AC Magnetic Fields
Untethered microswimmers are essential for various applications. Here, we propose a thermally driven untethered swimmer using a convection flow with the eddy current loss due to AC magnetic fields and examine the performance of the swimmer. Specifically, we demonstrate that a floating object with a Cu oblique beam can be moved at a velocity of up to 1.8 mm/s by applying an AC magnetic field of 10.2 mT with a frequency of 11.7 kHz. Furthermore, by measuring the temperature of the Cu plate under the magnetic field, we clarify the role of the eddy current. In addition, we clarify the design concept of the convective swimmer from measurements at various angles of the oblique beam and applied magnetic fields. Our findings should contribute to the development of innovative untethered thermally driven microrobots and microswimmers.
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来源期刊
CiteScore
3.40
自引率
17.60%
发文量
325
审稿时长
3 months
期刊介绍: The papers published in JPSJ should treat fundamental and novel problems of physics scientifically and logically, and contribute to the development in the understanding of physics. The concrete objects are listed below. Subjects Covered JPSJ covers all the fields of physics including (but not restricted to) Elementary particles and fields Nuclear physics Atomic and Molecular Physics Fluid Dynamics Plasma physics Physics of Condensed Matter Metal, Superconductor, Semiconductor, Magnetic Materials, Dielectric Materials Physics of Nanoscale Materials Optics and Quantum Electronics Physics of Complex Systems Mathematical Physics Chemical physics Biophysics Geophysics Astrophysics.
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