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Paper Abstract and Keywords
Presentation 2023-08-08 09:35
High-efficiency wireless power transmission to small coils using high-Q superconducting coils
Kai Ebihara, Natsuka Oshimoto, Keita Sakuma, Naoto Sekiya (Yamanashi Univ.) SCE2023-1
Abstract (in Japanese) (See Japanese page) 
(in English) The power transfer efficiency (PTE) of a wireless power transfer (WPT) system for capsule endoscopy that uses a high-temperature superconducting (HTS) transmitting (Tx) spiral coil (diameter: 235 mm) and a small Cu receiving (Rx) solenoidal coil (10 × 20 mm) was investigated. To improve the PTE we used a previously developed high-quality factor (Q) coil using double-sided HTS coated conductor wire as the Tx coil. The measured Qs of the Tx and Rx coils were 13,007 and 105, respectively. That of the Tx coil was about 13 times that of a Cu one. The PTE of the WPT system was measured in the facing direction, axial misalignment, and angular misalignment. The measured PTEs of two systems, one with a Cu Tx coil and one with an HTS Tx coil, in the facing direction at a transfer distance of 15 cm were 48.6% and 15.3%, respectively. The PTE of the system with a HTS Tx coil under axial misalignment, and angular misalignment conditions showed sufficiently high robustness compared with a system with a Cu Tx coil.
Keyword (in Japanese) (See Japanese page) 
(in English) Wireless Power Transfer / High-Temperature superconductor / High-Q coils / capsule endoscopy / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 153, SCE2023-1, pp. 1-5, Aug. 2023.
Paper # SCE2023-1 
Date of Issue 2023-08-01 (SCE) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF SCE2023-1

Conference Information
Committee SCE  
Conference Date 2023-08-08 - 2023-08-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Yokohama National Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SCE 
Conference Code 2023-08-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) High-efficiency wireless power transmission to small coils using high-Q superconducting coils 
Sub Title (in English)  
Keyword(1) Wireless Power Transfer  
Keyword(2) High-Temperature superconductor  
Keyword(3) High-Q coils  
Keyword(4) capsule endoscopy  
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1st Author's Name Kai Ebihara  
1st Author's Affiliation Yamanashi University (Yamanashi Univ.)
2nd Author's Name Natsuka Oshimoto  
2nd Author's Affiliation Yamanashi University (Yamanashi Univ.)
3rd Author's Name Keita Sakuma  
3rd Author's Affiliation Yamanashi University (Yamanashi Univ.)
4th Author's Name Naoto Sekiya  
4th Author's Affiliation Yamanashi University (Yamanashi Univ.)
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Speaker Author-1 
Date Time 2023-08-08 09:35:00 
Presentation Time 25 minutes 
Registration for SCE 
Paper # SCE2023-1 
Volume (vol) vol.123 
Number (no) no.153 
Page pp.1-5 
#Pages 5 
Date of Issue 2023-08-01 (SCE) 

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