{"title":"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","authors":"Hideyuki Sugioka, Ryo Takeda","doi":"10.7566/jpsj.93.034802","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":17304,"journal":{"name":"Journal of the Physical Society of Japan","volume":"50 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Thermally Driven Untethered Swimmer Using a Convection Flow with the Eddy Current Loss Due to AC Magnetic Fields\",\"authors\":\"Hideyuki Sugioka, Ryo Takeda\",\"doi\":\"10.7566/jpsj.93.034802\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"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.\",\"PeriodicalId\":17304,\"journal\":{\"name\":\"Journal of the Physical Society of Japan\",\"volume\":\"50 1\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Physical Society of Japan\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.7566/jpsj.93.034802\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Physical Society of Japan","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.7566/jpsj.93.034802","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
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.
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.